It may be a man's world but Sisaundra proved it's her world on 'The Voice.' Blake Shelton paired Sisaundra with Biff Gore, who he stole from #TeamUsher, to kick off the second night of battles with 'It's a Man's, Man's, Man's World.'

Sisaundra vs Biff Gore

Sisaundra and Biff Gore delivered one of the greatest performances I've ever seen on any show, including the Grammy's. All four coaches were on their feet and Adam Levine wondered where Sisaundra came from. 'I'm 80% sure you're not from planet Earth.' 'You guys solidify why 'The Voice' is the best singing competition on television,' said coach Blake Shelton. Amen Blake. Amen! Blake chose to keep Sisaundra, who I've said weeks ago will win this season. 'I can't miss out on the opportunity to work with a one and a trillion vocalist like Sisaundra.' Hand this woman the trophy. Sisaundra has this in the bag. In the words of Chris Martin, who is the guest mentor 'there's only three people on Earth who can sing like that.'

Sisaundra vs Biff Gore

The second battle rounds continue Monday night at 8 on NBC.