John Mayer Performing with Brad Paisley at ACM Awards :    John Mayer has found a new partner – on stage, that is.

The musician, who split from Katy Perry last month, will perform with Brad Paisley at the Academy of Country Music Awards this Sunday night at the MGM Grand in Las Vegas, PEOPLE learns exclusively.

Fellow performers for country’s big night include Carrie Underwood, Taylor Swift, Kelly Clarkson, Tim McGraw, Miranda Lambert, Blake Shelton, Jason Aldean, Garth Brooks, Luke Bryan, Kenny Chesney, Eric Church, Hunter Hayes, Jewel, George Strait, Stevie Wonder, Lady Antebellum, Little Big Town, Pistol Annies and The Band Perry.