Not to be upstaged by ex-hubby TOM CRUISE – who’s famed for aiding distressed motorists – NICOLE KIDMAN and new hubby KEITH URBAN swung his luxury tour bus over and stopped when they spotted a mom and two young daughters stranded in the boonies next to their broken-down car! The trio got flat-out flabbergasted when they recognized Nicole and Keith, who were on the road again to a C&W hoedown in Knoxville. The stars invited the strandee’s aboard – then served cold drinks and snacks while they waited for a long-overdue tow truck the mom had called. Nicole and Keith even insisted on driving the gals to the town where the truck finally towed their car.