Robert Downey Jr. has taken to social media to mark the most romantic day of the year with a Doctor Doom-themed Valentine's ...

Love is in the air on Valentine's Day -- and the NFL isn't immune to the charms of the day. Teams around the league took to social media ...

The official Dallas Cowboys X account sent out some Valentine's Day cards with player name puns, but some failed to deliver.

See how rock stars and bands such as Guns N' Roses, Bret Michaels and more celebrated the Feb. 14 holiday on social media ...