Soul singer John Legend and his wife, model and TV host Chrissy Teigen, are expecting their first child.

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"John and I are so happy to announce that we are pregnant," Teigen, 29, posted on Instagram Monday evening. "As many of you know, we've been trying to have a baby for a while now. It hasn't been easy, but we kept trying because we can't wait to bring our first child into the world and grow our family. We're so excited that it's finally happening. Thank you for all your love and well wishes. I look forward to all the belly touching!"

The couple, who began dating in 2007, married in September 2013.