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43-year-old Nicole Kidman overshadowed her Grammy-nominated hubby Keith Urban on the red carpet tonight at the Grammys ...

After mocking her ex, Tom Cruise, saying she could finally wear heels once they divorced, Nic's back to being the taller one of the couple!

Still, it seems like she's found true love in Keith with their new baby girl Faith and their 2-year-old daughter Sunday Rose.

And Kidman's on top right now with her film Just Go With It beating out Justin Bieber's Never Say Never this weekend at the box office. Congrats, Nicole!