The Wanted's Siva Kaneswaran and his longtime girlfriend Nareesha McCaffrey are now engaged.

The couple of six years opened up to Hello! magazine about the proposal.

"I said to her I wanted a present I would always remember the year by...for you to be my wife,'" Kaneswaran told the magazine. "It was like a military operation to plan the proposal. I couldn't even tell the other boys in the band in case they blew the surprise."

He continued, "I found out Nareesha was planning a surprise party on my birthday with her family so I thought perfect! I'd bought the ring months before I'd been trying to figure out the right time."

McCaffrey, a shoe designer, said she's still in "shock" by the proposal.

"I don't like surprises and he really surprised me, but I was so happy," she told the magazine. "I can't wait to start planning the wedding."

On Dec. 9, the same day of the announcement, she also tweeted, "Thank you for all your lovely messages. So delighted right now."

Scroll through the gallery to see photos of the couple.