JACK RUSSELL'S GREAT WHITE frontman Jack Russell was forced to cancel the band's scheduled concerts in Florida this weekend after he reportedly came down with "an intestinal infection and had to placed on IV and antibiotics." According to posting on the singer's Facebook page, the members of his band made appearances at the venues in Sanford and Jacksonville where JACK RUSSELL'S GREAT WHITE was supposed to perform and they played covers with local musicians. The two shows have now been moved to next weekend.JACK RUSSELL'S GREAT WHITE is not to be confused with the other touring and recording version of GREAT WHITE, which features Mark Kendall, Scott Snyder (bass), Audie Desbrow (drums), Michael Lardie (guitar, keyboards) and Terry Ilous (lead vocals). Russell filed a lawsuit against his estranged bandmates in March claiming that they fired him and stole the group's name while he was recovering from surgery to repair a perforated bowel. Named in the complaint were Kendall, Desbrow, Lardie and talent agency Bigg Time Entertainment. Kendall, Desbrow and Lardie responded with a 30-page counterclaim, filed on April 24 in a federal court in Los Angeles, accusing their former frontman of, among other things, "miss[ing] 80 performances in 18 months" before leaving the band; "irreparably damag[ing]" their "market reputation" by putting on performances that "are not up to the standard of GREAT WHITE; and misleading the public by stating that the musicians in Jack's new band "were once full members of GREAT WHITE." They also accuse Russell's new bandmates of "profit[ing] from their wrongful affiliation with the GREAT WHITE brand."