Singer Madonna rants about being a good mother amid custody battle (Photos)

Madonna insists it’s possible to be an entertainer AND a good mother amid her custody battle over son Rocco.

The superstar shared a throwback pic with her son and his siblings on Instagram yesterday after the 15-year-old walked out of her Rebel Heart tour and went to stay with his father Guy Ritchie in London.

She wrote alongside the snap: “Its possible to be an entertainer and a good mother!!! Too bad we don’t live in a society where many encourage strong independent single working moms! The next great Frontier! ️#revolutionoflove continues ️#rebelheart4ever.”

Madonna ‘s son is still in London as his parents continue to be locked in a custody battle.

The teenager has been staying with his dad Guy in the UK, and the pair were spotted enjoying a bike ride together.

The father and son duo wore matching outfits as they got in some quality time, with both of them wearing white tracksuit bottoms and black coats as they got home.

While Guy went for a white cap, his son opted for a black hat as they were seen chatting as they rode along on the pavement.

A source told PEOPLE: “This is far beyond a situation about Rocco – it’s about a situation between Madonna and Guy. They don’t have a good relationship; it’s more of a power fight between them and if he can one-up her. This is the best way he can do it.”

The 57-year-old singer and the 47-year-old director divorced in 2008 and the source added: “Prior to their divorce, (their relationship) was horrible.”