Tiffany, left, headlines MetroBall 15, coming June 5 to S4. Grammy winner Jennifer Holliday, right, will also perform, along with Thea Austin and Chris Chism. ‘Eighties pop queen Tiffany is returning to the S4 stage as the headliner for MetroBall 15, and she will be joined by Grammy-winning Dreamgirl Jennifer Holliday, Thea Austin (formerly of SNAP) and local entertainer Chris Chism to kick the fundraising party’s 15th anniversary celebration into high gear.