Victoria Beckham's Daughter Harper Adorably Sings 'Happy Birthday' to Her Mom - See the Video

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Happy Birthday, Victoria Beckham!

The fashion icon and former Spice Girl, 43, is ringing in her birthday on Monday with an adorable serenade from her 5-year-old daughter, Harper.

READ: Victoria Beckham Gushes Over Her Kids and 'Soulmate' David Beckham: 'We're Lucky to Have Each Other' 

The well-wishes from Beckham's family continued with a pair of sweet photos posted by her sons Cruz, 12, and Romeo, 14. Her husband, David Beckham, opted for a silly throwback photo in his Instagram tribute.

"Happy birthday to an amazing mummy, wife and friend," the soccer star wrote. "We love you. Have a beautiful day."

Beckham has been busy in recent months promoting her new fashion line with Target, even making a hilarious appearance on James Corden's 'Carpool Karaoke' -- with a twist! See the bit below.

WATCH: Victoria Beckham and James Corden Hilariously Spoof 'Mannequin' -- and Sing Spice Girls!