Hitmaking producer/songwriter Tricky Stewart and his RedZone Entertainment company hosted one of the hotter Grammy party tickets Friday night at the Playhouse Hollywood. Stewart, who's up for Album of the Year for his production work on Katy Perry's "Teenage Dream," drew a crowd that included Universal Motown president Sylvia Rhone, songwriter Ester Dean, longtime collaborators Kuk Harrell and The-Dream, who manned the DJ booth for a moment, and drummer Travis Barker, who also took the stage for a quick performance. A Justin Bieber-less Scooter Braun, a longtime friend of Stewart's who worked together on the teen pop star's "My World" albums, also came through with hip-hop star Asher Roth, while Ne-Yo, Leona Lewis, Akon, Ciara, Christina Milian, Adrienne Bailon, Ray J and other stood on their VIP banquets and overlooked the packed house.

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Hitmakers, from left to right: Tricky Stewart, Asher Roth, The-Dream, Scooter Braun. (Joe Scarnici/Getty Images)

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U.K. singer-songwriter Leona Lewis with Stewart's longtime collaborator Kuk Hurrell (right). (Joe Scarnici/Getty Images)
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Left to right: The-Dream and DJ Ruckus, both of whom DJ'd the party, with Stewart and Ciara (Photo: Joe Scarnici/Getty Images)
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Tricky Stewart, the night's host, with Akon (Photo: Joe Scarnici/Getty Images)