Celebrity marriages and engagements of 2011 (15 images)

Disney Channel actress Brenda Song became engaged to Trace Cyrus (Miley Cyrus' brother) in October 201. Cyrus announced the couple's engagement over Twitter. Trace is seen to the left of the photo of his family. (UPI Photo/ Phil McCarten)

Trace Cyrus, Brandi Cyrus, Noah Cyrus, Tish Cyrus, Billy Ray Cyrus (L to R) attend the motion picture drama "The Last Song", at the Arclight Cinerama Dome in Los Angeles on March 25, 2010. UPI/Jim Ruymen

Singer Nick Lachey began dating Vanessa Minnillo in 2006 after she stared in one of his music videos. The couple married in July 2011 on Sir Richard Branson's private Necker Island in the British Virgin Islands. UPI/Jim Ruymen

Musician Paul McCartney and his American fiance Nancy Shevell seen here celebrating their wedding at the Marylebone register office in London on Sunday, October 9, 2011. It was Paul McCartney's third wedding, and occurred at the same venue as his marriage to his first wife Linda. UPI/Hugo Philpott