Miley Cyrus, who has made a recent habit of notable awards-show appearances, performed at the gala but ditched the Grammys. Despite generally positive reviews for her latest album, Bangerz, Cyrus wasn't nominated this year.
Instead, the 21-year-old twerk princess treated fans to a brief "Guitar Hero" performance.
Justin Timberlake and Kanye West were both nominated, but decided not to attend. The latter complained last month that his album, Yeezus, should have received a nod for Album of the Year.
"Yeezus is the top one or two album on every single list, but only gets two nominations from the Grammys," he said at the time. "What are they trying to say?"
Scarlett Johansson steps out with fiance after pregnancy reveal
Interpol investigating stolen passports on missing flight