Timberlake, Biel rumored to be engaged

Justin Timberlake and actress Jessica Biel are engaged - this according to multiple media outlets who cite unnamed sources.

According to Reuters, representatives for both stars have not responded to requests for comment.

Reporters for Radar and Gossip Cop said they have spoken to the singer's grandmother, Sadie Bomar, who had supposedly confirmed that they are tying the knot.

Us Weekly had reported that Timberlake and Biel got engaged in late December while vacationing in Wyoming. But his grandmother allegedly said the two were in Montana. An unidentified People magazine source corroborated this claim, adding that Timberlake gave Biel a custom-designed ring.

The couple began dating in 2007 and had a brief three-month split in 2011.