Singer and girlfriend Nazanin Mandi are engaged after a 12-year dating period

The popular singer and his girlfriend of 12 years decided to make things official by tying the knot, E! News confirms.

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"Nazanin and Miguel are really excited to get married! They've been together for some time and knew that they were going to spend their lives together," a source told the entertainment network.

"All of their friends and family think they are the best couple and really complement each other," the source continued.

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The 30-yr-old singer's proposal to his 29-yr-old girlfriend was "very heartfelt and real" and "done perfectly", "Miguel will definitely be singing his soon-to-be wife a tune when their wedding takes place," the source added.

Nazanin further sparked engagement rumours as she shared a selfie on Instagram where the huge diamond on her ring finger was very noticeable.

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"When you get all dolled up but decide to stay in .... Eat .... And watch A Haunting Thank you for the Trim @1littlemonster @carltonhairmdr", she captioned the photo.

Congratulations to them.