Ashton Kutcher Gallery
'That '70s Show'
Topher Grace, Ashton Kutcher, Danny Masterson, Wilmer Valderrama, Laura Prepon and Mila Kunis recently held a reunion, and adorably sang the That '70s Show theme song. "Every once in awhile friends gather for a 6 part harmony of a BigStar song…," Masterson posted on Instagram alongside the priceless reunion pic. The Fox hit lasted for eight years, and left the air in 2006.