U.S. Sen. Cory Booker — a Democratic rock star — is headlining a fundraiser for fellow Sen. Bill Nelson in Tallahassee next month.

Booker, who was the mayor of Newark before heading to D.C. in 2013, will be the main draw at an April 14 luncheon at the home of Altha Manning, according to an invite posted on Twitter by Allison Tant, a former head of the Florida Democratic Party.

Nelson, a veteran politico who’s represented Florida in the U.S. Senate for 17 years, could be in a face-off against Republican Gov. Rick Scott.

Scott, who is forced out of the governor’s office due to term limits, is expected to announce his intentions soon.