Christina Aguilera, Heidi Klum and Avril Lavigne: Celebs Sporting Pink Streaks (GALLERY)

Pink hair has gone from punk rock to mainstream with a slew of celebs rocking the look. Christina Aguilera, for one, debuted her dip-dyed locks at the 2012 Alma Awards on Sunday, Sept. 16.
The 31-year-old Voice mentor went for a purple and pink mix, while other stars have opted for a more bubblegum hue. Heidi Klum, 39, unveiled baby pink tips at the “Truly Scrumtious Collection” event on Sept. 14.

Who else is tinting their hair pink?

Both Avril Lavigne, 27, and Rachel McAdams, 33, opted for a streaky look, while Willow Smith, 11, went full-throttle and dyed her buzzed haircut neon pink. Jersey Shore’s Jenny ‘JWOWW’ Farley, 26, went for fuchsia tips to peek out from under her brunette locks.