Gwyneth Paltrow posted a warm Instagram birthday message this Sunday for fitness trainer to the stars Tracy Anderson.
The platinum blonde 46-year-old film star included a video of herself and Tracy exercise dancing in sports bras and leggings to Formation by Beyonce.
'Happy birthday to my favorite dance partner of all time. Thanks for somehow keeping me motivated after all these years (nearly 13!),' wrote Gwyneth.
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Ab fab: Gwyneth Paltrow posted a warm Instagram birthday message this Sunday for fitness trainer to the stars Tracy Anderson
The Shakespeare In Love actress is a longtime pal of Beyonce, who gushed to E! News six years ago that Gwyneth 'is incredible; she's a great friend on every level.'
Celebrities who have availed themselves of Tracy's fitness expertise include Jennifer Lopez, Kim Kardashian, Victoria Beckham, Madonna and Lena Dunham.
This has been a busy week for Gwyneth birthday-wise - on Saturday, she wished a happy 42nd to her ex-husband Chris Martin, the father of her children.
The previous day, she rang in the birthday of her current husband Brad Falchuk, a TV writer known for his collaborations with Ryan Murphy.
Motivation: The platinum blonde 46-year-old film star included a video of herself and Tracy exercise dancing in sports bras and leggings to Formation by Beyonce
Loyalty: 'Happy birthday to my favorite dance partner of all time,' wrote Gwyneth, adding: 'Thanks for somehow keeping me motivated after all these years (nearly 13!)'
