Music producer/songwriter Christopher “Tricky” Stewart hosted his 2nd annual pre-Grammy party at Wonderland in Los Angeles Friday night (Jan 29) and a good number of his celebrity friends showed up to party the night away.

Over the span of his 16 year career, Stewart has created hits for Beyonce (“Single Ladies”), Rihanna (“Umbrella”), Mariah Carey (“Obsessed” and “Touch My Body”), Justin Bieber (“One Time”), Usher (“Moving Mountains”) and tons more.

Some of the guests at his pre-Grammy party were Ne-Yo, Ciara, Christina Aguilera, the legendary Stevie Wonder and more. Check out more pictures below and when you continue reading…

PHOTOS: GETTY IMAGES / WIRE IMAGE