New Kids on the Block's Jonathan Knight Proposes to Boyfriend

New Kids on the Block singer Jonathan Knight took to Instagram to announce he proposed to his longtime boyfriend Harley Rodriguez and is now engaged, People magazine reports.

Speaking on the "The Jenny McCarthy Show" on Sirius radio Tuesday, Knight, 47, confirmed the news, saying he popped the question while on a romantic action in Africa.

"We were in Africa, our parents were there -- our moms were there -- and I just figured this was the time to pop the question and make it official," he said. "We were on the Zambezi River -- it's right above Victoria Falls. We took a nighttime raft dinner, just the four of us out on the river, there was like a hippopotamus in the background. It was a super moon. It was just absolutely beautiful, it was so romantic."

Rodriguez said he had "no clue" about the surprise, which Knight was planning for at least three weeks before their safari getaway.

Knight and Rodriguez, a personal trainer, have been together after first meeting in 2008 through a mutual friend, People notes.

Check out the pop star's Instagram photos and listen to his interview below.