Overview: Showbiz Tonight is an American entertainment news program on HLN. Showbiz Tonight is hosted by A.J. Hammer at CNN New York. The show reports and debates celebrity entertainment news stories and controversies, along with social networking segments involving viewer interaction via social networks and the program's call-in toll free number. The program airs Monday through Thursday nights at 11 p.m. Eastern, with encore presentations on Tuesday through Saturday mornings at 2 a.m. and 4:10 a.m. Eastern. Showbiz Tonight is also shown several times daily in Europe on Star! Scandinavia, a channel operated by Turner NonStop Television, part of Turner Broadcasting.