12/06/2010 03:17 pm ET Updated May 25, 2011

Out And About This Weekend: 'Power Of Comedy,' 'Trevor LIVE,' And KIIS FM's Jingle Ball

Big names in comedy and music hit the red carpet and took the stage over the weekend: on Saturday, comedians like Russell Brand came out to celebrate Variety's "Power of Comedy" at Club Nokia, and on Sunday celebrities like James Marsden, Jessica Alba and Emma Stone made appearances at the Trevor Project's annual "Trevor LIVE" show at the Hollywood Palladium. Also on Sunday, radio station KIIS FM held its annual Jingle Ball, where artists like B.o.B., Enrique Iglesias, and Selena Gomez performed for a festive crowd. A few stars like Katy Perry, Sarah Silverman, and Justin Long even made multiple appearances during this weekend's events, so check out the slideshow to see who was where.