The two Boyzone singers recently met up with former bandmate Keith Duffy and his current touring partner Brian McFadden - who quit Westlife in 2004 - at an Irish TV studio, where they discussed the possibility of joining up on the supergroup's upcoming tour.
And it seems both Ronan and Shane are up for the prospect.
A source told The Sun newspaper: ''They bumped into each other recently and raised the possibility of Ronan and Shane joining the super band.
''Everyone agreed they would be great together - they still all get on well and are excited to create lots of new memories.
''It's just a possibility at the moment but it's looking more and more likely Ronan and Shane could join the rest of the band for a few shows on tour.''
Brian and Keith - whose tours have seen them tell stories about their life on the road and perform a mix of their respective groups' biggest hits - previously admitted they would love to see
more of their old bandmates take part in their supergroup.
Brian previously said: ''We all had a chat, the lads. We said it would be amazing.
''Not even just performing together, but can you imagine the craic? Nine of us Irish lads on a tour bus together, going round the world together.
''We all get on so well so you never know; we would have so much fun on tour.''
It is unclear whether the remaining member of Boyzone, Mikey Graham, has been asked to join them on the road if Shane and Ronan do agree to take part.
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