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For the party, the 18-year-old donned a bright blue bubble dress, sequined stockings and blue peep-toes with a short bob big, bright blue lipstick and eye make-up. Socialite Life reported that she serenaded the blogger with a rendition of "Happy Birthday". Afterward, she tweeted, "Happy Birthday @PerezHilton what a great party."
Selena wasn't the only celebrity attending the bash held at Siren Studios in Hollywood. Victoria Justice, Raven-Symone, Eliza Dushku, Aubrey O'Day and Jesse Tyler Ferguson were among those present, while "Glee" star Darren Criss, YouTube sensation Greyson Chance and '80s pop star Debbie Gibson performed.
Selena's boyfriend Justin Bieber was unable to come to the party, and so were Taylor Swift, Nelly Furtado, Charice and Lady GaGa. Still, they sent Perez video messages wishing him a happy birthday. Charice, in particular made a song tribute to Perez by singing him GaGa's "Born This Way".