After having his mini-concert on "Jimmy Kimmel Live" cancelled without explanation last week, things turned around for Garth Brooks and his fans. Late Friday ABC announced that the free concert was back on. No explanation was given for the abrupt cancellation, or the equally abrupt announcement that Garth would play. Garth appeared on the late night show last night, spending some couch time with the host as well as performing. When he did perform, he crushed a live rendition of the Nitty Gritty Dirt Band's classic "Fishin' In The Dark."