The final four contestants will compete during the two-part season finale on Dancing with the Stars on Monday, May 20 and May 21 with a two-hour special beginning at 8 p.m. EST on ABC on both nights.

The final four finalists are:

Zendaya Coleman & Val Chmerkovsky

Jacoby Jones & Karina Smirnoff

Kellie Pickler & Derek Hough

Aly Raisman & Mark Ballas

The four pairs will perform three dance routines each on Monday. The first dance will be a new routine in a style that the judges would like to see them perform again. In round two, they will all dance a Cha Cha relay- each couple will dance to a different portion of the song. Their last round will be a freestyle number with special effects, additional dancers and more surprises.

On Tuesday, May 21, one of the four contestants will be eliminated early in the episode after the studio audience learns who received the least amount of votes from the performances done the night before.

Tuesday's two-hour special will offer the return of the previous contestants that were eliminated during the first nine weeks of the season 16. Andy Dick, Dorothy Hamill, D.L. Hughley, Victor Ortiz, Ingo Rademacher, Sean Lowe, and Lisa Vanderpump will perform together in an opening number with additional professional dancers.

The list of musical guests that will perform during the final episode will be:

Pitbull, Hands Up

Wynonna Judd, I Want To Know What Love Is

Psy, Gentleman

Jessica Sanchez will sing Pitbull's Feel This Moment

The three remaining contestants will compete for one last time in the second hour of Tuesday's finale show. They will perform an Instant Dance- a style they know very well but to new music they will be assigned to them live during the show for the first time. They will be given a score out of 30 and that score will be combined with their scores from Monday night's show.

The two-part season finale of Dancing with the Stars will air on Monday, May 20 and May 21 with a two-hour special beginning at 8 p.m. EST on ABC on both nights.