Mariah Carey renews wedding vows

Pop megastar Mariah Carey and her husband, Nick Cannon, celebrated their fourth anniversary by renewing their wedding vows on top of the Eiffel Tower in Paris.

'Tonight was an incredible night, I can't express how amazing it was to renew our vows in Paris at the top of the Eiffel tower,' the 42-year-old singer tweeted Friday. 'Thank you so much to all the fans who came out as always and showed their love and support. I love you!'

Carey and Cannon's actual wedding anniversary falls Monday, which is also the first birthday of their twins, Moroccan Scott and Monroe.

The stars, who tied the knot in a surprise ceremony in the Bahamas four years ago, renew their marriage vows every year. Last year, they renewed their vows at a Los Angeles hospital just after the singer gave birth.

The couple had an extra reason to celebrate this year as Cannon, 31, appears to be on the mend after battling a series of health problems, including mild kidney failure.

The entertainment personality was released from the hospital in January after receiving treatment for the condition but was forced to pull out of his radio show 'Rollin' With Nick Cannon' on 92.3 NOW in New York in February after doctors discovered blood clots in his lungs.