Justin Timberlake is reportedly ready to wed longtime girlfriend Jessica Biel. Sources say the singer has been thinking about marriage and having children; and realizes Biel is the woman he wants to spend the rest of his life with.

“Justin is 27 and thinking about marriage and kids. For the first time in his life he is feeling settled and has definitely decided to pop the question to Jessica,” says the insider. “He is so happy with her. They spent quite a bit of time apart recently when Justin was working with Madonna. That made him certain Jessica was the person he wants to spend the rest of his life with.”