FOUR REMAINING COUPLES COMPETE IN THE SERIES' TOUGHEST SEMIFINAL EVER, ON "DANCING WITH THE STARS," MONDAY, MAY 16 ON ABC

TUESDAY FEATURES UNFORGETTABLE APPEARANCES BY FAVORITE "DWTS" ALUMS, PLUS ONE LAST ELIMINATION TO DETERMINE SEASON 12'S FINAL THREE COUPLES, ON "DANCING WITH THE STARS THE RESULTS SHOW," MAY 17 ON ABC

Legendary Rock & Roll Hall of Famer Stevie Nicks Performs Two Songs Live on Tuesday

Rocking Performance from Music Sensation Pitbull Featuring Ne-Yo also Tuesday

"Episode 1209" - The competition is closer than ever as the four remaining pairs perform three pressure packed routines -- one ballroom and one Latin dance they've not yet done, and one winner-takes-all Cha Cha -- for the chance to make it to the Season 12 finals, on "Dancing with the Stars," MONDAY, MAY 16 (8:00-10:01 p.m., ET/PT), on the ABC Television Network.

Tuesday's exciting two-hours of dance begin with "Dancing with the Stars Live: Freestyle Special," in which "DWTS" alums Apolo Anton Ohno (Season 4 champion), Donnie Osmond (Season 9 champion), Warren Sapp (Season 7 finalist) return to the ballroom to provide color commentary on their memorable individual freestyle routines. In addition, "DWTS" pros and the dance troupe perform two medleys to some of the best music from past freestyles. Season 2 winners Drew Lachey and Cheryl Burke will also be back to perform their fan favorite freestyle, "Save a Horse, Ride a Cowboy," on "Dancing with the Stars Live: Freestyle Special," TUESDAY, MAY 10 (8:00-9:00 p.m., ET).

Then, on "Dancing with the Stars the Results Show: Episode 1209A," TUESDAY, MAY 17, (9:00-10:01 p.m., ET), one semifinalist couple will leave the ballroom and the three Season 12 finalist couples will be determined. On this action packed Results show, guest musical artist, Grammy Award-winning and Rock & Roll Hall of Famer Stevie Nicks performs two songs, the iconic "Landslide," accompanied by Tony and Cheryl on the dance floor, and the new single "Secret Love" from "In Your Dreams" -- her first new CD in over a decade -- accompanied by Dmitry, Anna, Peta and Damian on the dance floor. Also this Tuesday, music sensation Pitbull featuring Ne-Yo and Nayer perform his single, "Give Me Everything," from his newest album, "Planet Pit."

Rock & Roll's reigning queen, Stevie Nicks recently released her new CD, "In Your Dreams," which was her first CD of new material since the release of her Grammy-nominated "Trouble in Shangri-La" 10 years ago. "In Your Dreams" was written and recorded at Nicks' Los Angeles home and was co-produced by Dave Stewart and Glen Ballard. Nicks and Stewart co-wrote 7 of the album's 13 songs, including her first single, "Secret Love," which is currently on iTunes. Nicks recently joined forces with fellow rocker Rod Stewart for the 16-city Heart & Soul Tour which began March 20th in Ft. Lauderdale, Florida. A multi-Grammy Award winner and Rock & Roll Hall of Fame inductee, Nicks' extraordinary career as a solo artist, songwriter, live performer and member of Fleetwood Mac is legendary. Fleetwood Mac's "Rumours" was one of the biggest selling albums of all time. Nicks penned such Mac classics as "Landslide," "Dreams," "Gold Dust Woman" and "Rhiannon." As a solo artist, beginning with the five-time platinum debut "Bella Donna," her solo hits include unforgettable singles such as "Edge of Seventeen," "Leather and Lace" and "Stand Back."

Cuban-American music sensation Pitbull builds on his global success with his sixth album, "Planet Pit," available June 21, which features guests Marc Anthony, Chris Brown, T-Pain, Ne-Yo, Kelly Rowland and Sean Paul. He collaborated with Ne-Yo, Afrojack and Nayer on his new single, "Give Me Everything." Already climbing the charts, the song is poised to pick up where Pit's multi-platinum smash hits "I Know You Want Me (Calle Ocho)," "Hotel Room Service" and "Hey Baby (Drop It on the Floor)" left off. Pitbull recently introduced Voli, his own line of premium, low-calorie vodka, and a entered into partnership with Sheets, the dissolvable energy strip. He has also launched his own Polo Grounds Music/J Records imprint (Mr. 305 Records) and inked major sponsorship deals with blue-chip brands Kodak, Dr. Pepper, Bud Light and Mr. Worldwide.

This week's powerful "Spotlight Segment" features the moment of a lifetime for 13-year-old Tayla Kelley, as she performs to "Bulletproof" with "DWTS" pros Lacey Schwimmer and Chelsie Hightower. Born with Primary Immune Deficiency Disease, the Rochester native has spent her entire childhood unable to fight infection, which has led to multiple surgeries, organ failure and shortened life expectancy. Despite these insurmountable odds, Kelley has found inspiration and strength to fight this severe, chronic illness through dance since age 2, and was recently recruited by the Timothy M. Draper School of Dance the training school for the Rochester city Ballet.

By Tuesday evening's end, one couple will be eliminated from the competition, as determined by a combination of the judges' scores and viewers' votes for Monday's performance. Who among the four remaining semifinalists will leave the ballroom floor and who will make it to the finals of "Dancing with the Stars'" most competitive season ever?

· KIRSTIE ALLEY, television and movie star, and MAKSIM CHMERKOVSKIY

· CHELSEA KANE, Disney star, and two-time champ MARK BALLAS

· RALPH MACCHIO, movie star, and KARINA SMIRNOFF

· HINES WARD, Super Bowl MVP, and Season 9 champion KYM JOHNSON

Hosted by Tom Bergeron ("America's Funniest Home Videos") and Brooke Burke ("Dancing with the Stars" Season Seven Champion), the celebrities perform choreographed dance routines which will be judged by renowned Ballroom judge Len Goodman and dancer/choreographers Bruno Tonioli and Carrie Ann Inaba.

Viewers may cast their votes for their favorite teams via phone on Monday night during and up to 30 minutes after the "Dancing with the Stars" performance shows. AT&T customers may also text message their votes by texting the word "VOTE" and entering the number that corresponds to the team they want to support (message and data rates may apply). AT&T will also offer customers exclusive mobile video footage of weekly backstage highlights to keep fans connected to some of their favorite couples all season long. Viewers may also vote online at www.abc.com starting from the opening of each episode on the East Coast with voting closing at 8:00 a.m., PT/11:00 a.m., ET on Tuesday mornings.

"Dancing with the Stars" is the U.S. version of the international smash hit series, "Strictly Come Dancing." This version is produced by BBC Worldwide Productions. Conrad Green serves as executive producer and Ashley Edens-Shaffer and Joe Sungkur are co-executive producers. Alex Rudzinski directs. "Dancing with the Stars" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1 channel surround sound. This program carries a TV-PG,L parental guideline.

About BBC Worldwide Productions:

BBC Worldwide Productions is based in Los Angeles and develops and produces scripted and non-scripted projects for U.S. cable and broadcast networks, as well as digital platforms. The production company is responsible for the smash hit "Dancing with the Stars" (ABC), "Top Gear" (HISTORY), "What Not to Wear" (TLC) and "Torchwood: Miracle Day" (Starz). BBC Worldwide Productions is one of seven core businesses within BBC Worldwide, the main commercial arm and wholly-owned subsidiary of British Broadcasting Corporation (BBC).