Jelly Rolls very busy weekend in New York City kicked off Friday night with a concert at Madison Square Garden, where the singer was joined onstage by surprise guestPost Malone.

The two artists performed three tracks together: A rendition of the country classic Friends in Low Places, a version of Malones I Had Some Help with Jelly Roll filling in for Morgan Wallen, and the live debut of Losers, their collaboration from MalonesF-1 Trillion.

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Jelly Rolls non-stop tour of NYC continues Saturday with a performance atthe Global Citizen Festival in Central Park(Malone is also on the lineup), after which hell on down to Rockefeller Center to serve asmusical guest on the Season 50 premiere ofSaturday Night Live, hosted by Jean Smart.

See Jelly Roll Bring Out Post Malone for Live Debut of ‘Losers’ at MSG

Jelly RollMat Hayward/Getty Images for Jelly Roll

After that, the singer will journey to New Jersey on Sunday for a gig at Newarks Prudential Center, after which his Beautifully Broken Tour will depart the tri-state area and head to Pennsylvania.