'Trespassing' hitmaker Adam Lambert was recently interviewed by Singapore's Hot FM 91.3 radio station and one of the hosts asked a special life-changing favour of him during their chat.

Presenter Boy Thunder, real name Gerald Koh, waited until the end of the interview to interject and then explained:

"My question is not really a question. I want to share with you something. I've been on radio for 4 years, I met my girlfriend through you. She's a listener and a huge fan of yours."

He continued: "She's very excited right now that you're in Singapore. It's been 3 years and I'm going to propose to her next week." Koh then asked Lambert to hold a sign, which was emblazoned with the marriage proposal, and took a photograph of him with it.

The interview footage then cuts to audio of Koh, who asks his girlfriend to check her Instagram page where he uploaded the snapshot of Lambert and the proposal and she gladly accepts.

Watch the coverage, which begins at the 15-minute mark, below: