People.com has learned exclusively that Taylor Swift ex, John Mayer, will perform with Brad Paisley at this Sunday's ACM Awards in Vegas.
This won't be the first time the pair have performed together. They also performed together for an episode of CMT's Crossroads a few years back.
Other performers scheduled for the show 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.
Newly announced presenters include Faith Hill, Shania Twain, Trisha Yearwood, Gary Allan, Chris Young and Eli Young Band – joining Sheryl Crow, Kaley Cuoco, Keith Urban and more.
Fans can catch the 48th Annual Academy of Country Music Awards, live from the MGM Grand in Las Vegas, April 7 at 8 p.m. on CBS.