Actress Betty White attends Betty "White Out" Tour at The Los Angeles Zoo with The Lifeline Program at Los Angeles Zoo. | Getty Images
Updated: January 17, 2013 3:58PM
Betty White’s 90th birthday celebration in 2012 was such a hit, NBC will air “Betty White’s 2nd Annual 90th Birthday Special” on Feb. 5, with appearances by Blake Shelton, Bill Cosby, Whoopi Goldberg, Sean Hayes, Lily Tomlin, and White’s “Hot in Cleveland” co-stars. — B.Z.