Lady Gaga celebrated her 30th birthday early over the weekend, inviting some of music’s biggest names to a pre-birthday bash at a Los Angeles club Saturday night. Gaga, along with her fiancé, Taylor Kinney, partied into the wee hours of the morning at West Hollywood’s No Name Club with such stars as Taylor Swift, Lana Del Rey, Lorde, Mark Ronson, Nick Jonas, John Legend and Chrissy Teigen, Kylie Minogue and Ashlee Simpson, and others…The extravagant singer, who turns 30 today showed up to the bash wearing a gold-sequined Saint Laurent minidress with puffy sleeves, a large black belt and platform heels.