Pop singer Madonna and her daughter Lourdes Leon. Picture: Supplied

Madonna hailed her daughter Lourdes the "light of her life" on her 22nd birthday.

The 60-year-old Queen of Pop - who has her eldest child with ex-partner Carlos Leon - took to Instagram on Sunday to share a series of photos of them together to mark the occasion. 

The first picture was taken at Lourdes' birthday dinner and saw them sharing a sweet embrace.

The Like a Virgin hitmaker captioned the shot: "Happy Birthday to My Darling Lolita!! Light of my Life! Me Preciosa! #littlestar (sic)"

In a second picture taken at a fashion show, Madonna added: "You”ll Never know How Much I Love You Love You Love You Lourdes Maria Ciccone Leon! (sic)"

It's the Holiday singer's tradition to celebrate her kids' birthdays by sharing pictures of them on the social media app.

Madonna certainly knows how to put on a lavish birthday bash.

The singer enjoyed a five-day extravaganza at a Moroccan palace for her 60th on August 16.

The superstar had her closest friends and family flown in to Morocco to stay at Riad el Fenn, which is owned by Richard Branson's sister Vanessa. 

Madonna shared a number of pictures of herself in Marrakesh on Instagram, wearing a stunning jewelled headpiece and long pink dress, as she partied the night away.

She wrote: "Finally and at last its my Birthday! . I have survived! !Life is Beautiful! #gucci #Marakesh #magic #adventure! @gucci @southpawvintagenyc @ericksonbeamon @temperleylondon. 

"Yes Bishes Its my Birthday! Thank you to my fans and friends all around the world!  #berber #bedouin #marakesh #magic #inspiration #blessed (sic)."
Another image showed her in the desert, as men on horses held torches to light her way.