Ronan Keating says he felt "really intimidated" when performing on the West End stage for the first time.

The Boyzone singer is playing the part of Guy in musical Once until March 21.

Speaking to This Morning, the Irishman admitted that he felt vulnerable whilst standing on stage during his debut.

Keating said: "It was frightening, really intimidating and I've never done anything like that before... it's very different [from performing music live] - you feel very exposed. 

"I've loved every minute of it, but wow, it's been full on. I felt like I was naked on stage!"

Once meanwhile is taking place at London's Phoenix Theatre.

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Watch Ronan Keating being interviewed below: