Keira Knightley engaged to James Righton, congrats!

Ooh we do love a good celebrity engagement, and now we've heard that Keira Knightley is getting married, we're very excited indeed.

Keira Knightley, James Righton, Klaxons, engagedKeira Knightley is engaged to James Righton. Copyright [WENN]

Keira Knightley, 27, has got engaged to her boyfriend, Klaxons keyboard player James Righton, 28, after 15 months together.

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Keira Knightley's spokesman confirmed the news today, saying: "I can confirm that Keira is engaged to be married to James Righton."

However, with Keira Knightley being notoriously private when it comes to her personal life, the spokesman didn't divulge any further details.

Keira Knightley, James Righton, engagedKeira Knightley and James Righton have been together for 15 months. Copyright [Rex]The couple began dating just over a year ago after they were introduced by mutual friend Alexa Chung, which is perhaps the coolest start to a relationship we can imagine.

However, the pair are rarely pictured out in public together, preferring to keep their  romance private.

Rumours were rife just a few months ago that Keira Knightley and James Righton were getting super-serious after he moved into her £2 million home.

Keira Knightley, James Righton, engagedKeira Knightley has yet to make an appearance on the red carpet with James Righton. Copyright [WENN]A source said at the time: "Keira suggested the idea and he moved his stuff in a couple of weeks ago. They want to get a puppy. It's all pretty serious."

Keira, who is yet to be snapped on the red carpet with James Righton, previously dated Rupert Friend for five years before splitting last year.

Congratulations to the happy couple! We think she'll make a gorgeous bride.