Brad Paisley is keeping fans in suspense over whether or not he's planning on joining the new ABC singing show "Rising Star." The country star was rumored to be in the running as a judge last week and on Monday his rep refused to confirm or deny the reports to CMT.com. Paisley has been a favorite of the network, hosting the CMA Awards on ABC for the past six years and appearing as a guest star on its drama "Nashville." If he does get confirmed for the judging role, there may be some scheduling conflicts. Brad is scheduled for a concert in Atlanta on the same night "Rising Star" premieres on June 22nd.