The couple previously had a practice commitment ceremony of sorts when they exchanged vows at a Las Vegas wedding chapel in April
Song follows Barker's collaborations with Machine Gun Kelly and Willow
The couple reportedly tied the knot after the Grammys, in a ceremony overseen by — of course — an Elvis impersonator
The country-music queen delivered Diane Warren's Best Original Song nominee with help from an all-star band
The rapper will also be joined by Blackbear, Trippie Redd, Iann Dior, Pvris, and 44phantom on select dates
DJ D-Nice and vocal group the Samples also to perform at March 27 ceremony, which will include the return of the Oscars' orchestra
The new series premieres on April 14
The clip also teases appearances from Travis Barker
Mainstream Sellout marks MGK’s sixth studio album
Months after announcing Born With Horns in permanent ink, the musician told the drummer/producer his next record would now be called Mainstream Sellout
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