Choreographer Tony Testa and the show's dance troupe, the Nick 6, demonstrated each routine slowly, repeating it several times during the episode.

Episodes featured musical guests, which included Akon, Natasha Bedingfield, Miranda Cosgrove, Fall Out Boy, Fergie, Janet Jackson, Sean Kingston, Lil' Mama, Jesse McCartney, Menudo, Omarion, Panic!

Her credits include Grey's Anatomy, Glee, The White House, The Ellen Show, Willow Smith, Cher Lloyd, and Nicki Minaj's "Pink Friday Reloaded" World Tour (2013).

Karen's technical background and diverse training create a unique hip-hop-inspired contemporary style, which she enjoys exploring and sharing with fellow dancers.

In addition to her artistic aspirations, Karen also has a passion for fashion and was an assistant to the PR Coordinator at Versace from 2011 to 2012.

She has also danced for Willow Smith, Cher Lloyd, and Justin Bieber as one of twelve dancers featured in his Believe Tour.

He's danced with multiple recording artists including Jennifer Lopez, Janet Jackson, Usher, Kylie Minogue, and Chris Brown.

Playlist *5 Timbaland: Give It to Me *4 Fall Out Boy: Thnks fr th Mmrs *3 Paramore: Misery Business *2 Justice: D.A.N.C.E.

*1 Mary J. Blige: Just Fine Playlist *5 Rihanna: Don't Stop the Music *4 Avril Lavigne: Girlfriend *3 Sean Kingston: Beautiful Girls *2 Natasha Bedingfield: Pocketful of Sunshine *1 Kanye West featuring Daft Punk: Stronger

Fresh-Squeezed Dance: Funkylicious Playlist *5 Lil' Mama featuring Chris Brown & T-Pain: Shawty Get Loose *4 Ciara featuring Missy Elliott: 1,2 Step *3 Simple Plan: When I'm Gone *2 Menudo: Lost *1 Ashlee Simpson: Outta My Head (Ay Ya Ya)

Fresh-Squeezed Dance: Boyband Breakdown Playlist *5 Madonna featuring Justin Timberlake & Timbaland: 4 Minutes *4 Pink: Get the Party Started *3 Diddy: Tell Me *2 Panic!

Fresh-Squeezed Dance: Bump, Jump and Thump Playlist *5 Kool & the Gang: Celebration *4 Tiffany Evans featuring Ciara: Promise Ring *3 Angels & Airwaves: Everything's Magic *2 Jesse McCartney: Leavin' *1 Omarion: Entourage

Fresh-Squeezed Dance: Boot Scooch Playlist *5 Beyoncé: Upgrade U *4 Paramore: Crushcrushcrush *3 Colby O'Donis featuring Akon: What You Got *2 Usher: U Don't Have To Call *1 Janet Jackson: Rhythm Nation Fresh-Squeezed Dance: The Double J Playlist *5 Gwen Stefani featuring Akon: The Sweet Escape *4 The D.E.Y.