All-stars return to perform with this season's top 10 finalists; dancers face elimination.

So You Think You Can Dance soars into its 11th season this May with a two-hour premiere event showcasing America's most talented dancers during the first round of auditions in New Orleans and Chicago. Justin Bieber and choreographer Nick DeMoura showcase two dance crews.

The second round of auditions features hopefuls in Chicago and Los Angeles. Guest judges include Jenna Elfman and Fabrice Calmels (Chicago); and Christina Applegate (Los Angeles).

The third round of auditions features dancers in Los Angeles and Philadelphia. Christina Applegate is the guest judge in Los Angeles, while Billy Porter and Misty Copeland share the honor in Philadelphia.

The fourth round of auditions features dancers in Atlanta. Jenna Dewan-Tatum and Charles "Lil Buck" Riley are the guest judges.

The contestants go to Pasadena, Cal., for callbacks to compete for a spot in the Top 20. The guest judges are Stephen "tWitch" Boss, Irina Dvorovenko, Tara Lipinski and Adam Shankman.

The Top 20 dancers perform. Jason Derulo is a guest judge, and also performs "Wiggle" with Snoop Dogg.

The Top 20 dancers perform for a second time, but two contestants are eliminated.

The Top 18 dancers perform, but two contestants are eliminated. Ballerina Misty Copeland is the guest judge. Also: A Great Big World perform "Say Something."

The Top 16 dancers perform, but two contestants are eliminated. Guest judge Misty Copeland.

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The remaining eight finalists perform.

The top six finalists perform; guest judge Christina Applegate.

The top four finalists perform; guest judge Tara Lipinski.

The winner is announced; guest judges include Jenna Dewan Tatum.