Kendrick Lamar and SZA have been sharing the spotlight with each other on their current Grand National Tour, and the “All the Stars” collaborators are bringing their A-list friends into the fold during select shows.

Playboi Carti was the first guest performer, popping out for “Good Credit” at the Atlanta show last month after Dot had been performing the MUSIC track dolo since the tour’s opening night in Minneapolis. Both Baby Keem and Kaytranada came out as surprise guests, performing “Family Ties” and Teedra Moses’ “Be Your Girl,” respectively, during the concert at the “Kill Bill” singer’s home state of New Jersey earlier this month. While SZA performed her “Consideration” collaboration with Rihanna from the latter’s iconic 2016 album Anti at the Jersey stop, we could only hope and dream that RiRi would one day join her on stage.

The stars have also been spotted on the sidelines, as videos of Pusha T attending their Foxborough show went viral.

And the upcoming trio of shows in Lamar’s hometown of Los Angeles might be looking like The Pop Out: Ken & Friends concert he hosted on Juneteenth last year, when the “Not Like Us” rapper brought out Mustard – who’s currently opening this tour and was one of the all-star guests during his Super Bowl Halftime Show performance earlier this year – Ty Dolla $ign, Tyler, the Creator, Roddy Ricch, YG, his former (and SZA’s current) TDE labelmates ScHoolboy Q, Jay Rock, Ab-Soul and many more.

Billboard rounded up all the guest stars who’ve popped up at the Grand National Tour, in order of oldest to most recent appearance.