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Una could be the first of the band to walk up the aisle.
The Saturdays singer, who's dating rugby player Ben Foden, is hoping her man is ready for marriage.
"If my boyfriend proposed I'd definitely say yes," Una revealed.
"I want to get married in Ireland. I'm catholic so I want to do it in a church down the road to where I'm from."
The couple have been together for two years and spent this weekend at Zara Phillips' royal wedding to Ben's rugby mate Mike Tindall.
Ben has described Una as "the one" but with whispers circling that JLS' Marvin is planning to propose to Una's bandmate Rochelle there could be a race to be the first up the aisle.