Previously: Le Tigre! Sia! Goldfrapp! Ladytron! And now Christina Aguilera, like a ventriloquist, has managed to stay tight-lipped while intimating how she's also collaborated with Santigold and M.I.A.. But specific details about the Best Album Ever otherwise remain cloudy. We don't even have a release date, although a viral should be forthcoming -- it usually is.

Reader, If I could impart one piece of nightlife advice it would be the following. Don’t start off a night with a terrible hangover when the BVLGARI Diagono Watch Collection, and Rock & Republic “Summer at The Beatrice Inn” are on the itinerary. Furthermore, it’s best not to attend an event celebrating anything having more than two consecutive consonants in its name with said terrible hangover, espcially if it's being held at Frank Gehry’s sleek IAC Building. The elegance of it all will make you feel like the tuna tar-tar being passed around. Instead, don your best Proenza Schouler with the prior knowledge that you’ll be bumping into beautiful people like Sean Avery, Simon Spurr, and New York Jets center Nick Mangold, and that later at the Beatrice, you’ll be dancing with Kirsten Dunst, Sia, Emma Snowdon-Jones and May Anderson. A cautionary tale.

There we were, perched atop the balcony inside the Highline Ballroom waiting for Yelle to take the stage—which didn’t happen until 1:30 a.m.—when our friend picked out a bleach-blonde dancer amidst the mass and said, “Isn’t that Sia?”

From Moby to Lupe Fiasco, the following photo essay features some of our favorite musicians captured at their favorite places. Sky’s the limit.