KELLY TO REBA-BUTT OUT!

Matchmaking mess as McEntire disses Blackstock divorce

MEDDLING Reba McEntire - The Voice's latest mega mentor wants to mend the broken marriage between her co-star Kelly Clarkson and stepson Brandon Blackstock - but the busybody's efforts to broker peace may blow up in her face, insiders spill.

"They have to play nice for the cameras, but things are really tense between them.

Reba's got it in her head that Kelly should take Brandon back, which has really upset Kelly," snitches a source.