Chalk up another celeb who's made good on a YouTube promise: Not to be outdone by Friends With Benefits co-star Justin Timberlake, Mila Kunis has hit her own Marine Corps ball. The actress accompanied Sgt. Scott Moore—who cheekily invited her in a YouTube video that went viral—to the gala in Greenville, NC, on Friday night. “She’s going to get a chance to learn about the Marine Corps and were all going to have a great time celebrating the Marine Corps birthday,” a Marines spokesman told Eyewitness News 9. No word on whether it was life-changing.