VIDEO : Ellen DeGeneres Gives Blake Shelton And Gwen Stefani A Proposal Countdown Clock

The clock is ticking for Blake Shelton and Gwen Stefani.

At least that's what Ellen DeGeneres says.

The country singer appeared on "The Ellen DeGeneres Show" on Wednesday, where the talk show host tried to convince Shelton to marry his longtime girlfriend.

So to speed things up, she gave him a pre-engagement gift: A giant clock with the couple's faces on it, a gift she said she also gave singer Jennifer Lopez when she was on the show.