"Ugly" was the lead single from American hip hop music artist Bubba Sparxxx's debut album, "Dark Days, Bright Nights". The song was produced and featured guest vocals from famed producer Timbaland. The song features a sample of Missy Elliott's "Get Ur Freak On" and uncredited backing vocals by Elliott's former protégée Tweet. Using only the above description and what you know about the world, "Tweet was the the lead vocalist on "Ugly"." is definitely correct, incorrect, or inconclusive? 