premise: The Tiki Bar is Open was singer-songwriter John Hiatt's sixteenth album, released in 2001. It was his last album with Vanguard Records. Although they are uncredited, the album features backing band The Goners, the same cadre of friends who backed Hiatt in his 1988 release Slow Turning. It was coincidentally released on September 11, 2001.
hypothesis: Slow Turning was an album with Vanguard Records.
reason: We are not told who the label is for Slow Turning - just its release date and that the Goners were the backing band. As it was before the last album with Vanguard, it could be with them - but we don't know for sure.