Elvis Presley's granddaughter Riley Keough engaged to Alex Pettyfer

Elvis' (granddaughter) has left the building! Riley Keough, the model/actress daughter of Lisa Marie Presley, is engaged.

Us Weekly is reporting that the 22-year-old recently said "Yes" when British actor Alex Pettyfer popped the question. The two have been dating for about six months.

Pettyfer, 21, recently starred in the films "Beastly" and "I Am Number Four." He was previously linked to Emma Roberts and his "Four" co-star Dianna Agron.

Keough starred in the film "The Runaways." She will also be featured in the upcoming male stripper movie "Magic Mike" alongside...Pettyfer.