They may be big shots in the musical industry now, but every star has had a first time at the Grammys. From Lady Gaga's spiky headdress to Justin Timberlake's perm, here are the most memorable first Grammys appearances.
Finding her 1999 debut album an international success, the "Genie in a Bottle" singer accepted her first Grammy for Best New Artist in 2000. "Oh my God! I seriously do not have a speech prepared," a flustered and shaky Aguilera said after beating out Britney Spears, Kid Rock, and Macy Gray for the honor.