Former Westlifer Kian Egan, musician Sharon Corr, crooner Brian Kennedy and bleedin' deadly Niall 'Bressie' Breslin showcase their button pushing skills in the fourth round of auditions as they continue their search for new talent, focusing specifically on the entrants' vocal/and each other's sniping abilities. Sir Richard Branson has a bit of banter about life with Gaybo afterwards on RTE1 at 10.30pm.