Madonna [1] hit the red carpet for the world premiere of The Beatles: Eight Days a Week — The Touring Years in London on Thursday. The singer posed for photos in a black and white ensemble before heading inside; the big event also brought out the two surviving Beatles, Ringo Starr and Paul McCartney. Madonna [2] and Paul's children have also collaborated recently; in March, Madonna's daughter Lourdes Leon was tapped as one of Stella McCartney's new muses [3] and starred in the designer's Pop fragrance Summer 2016 campaign. Of Lourdes, Stella said, "She's an independent, inspirational, and free-spirited young woman." The apple certainly doesn't fall far from the tree!

Madonna headed to London this week ahead of her son Rocco Ritchie's first day of school [4]. The singer and her ex-husband director Guy Ritchie [5] have been embroiled in an eight-month custody battle [6] over the 16-year-old and settled the case earlier this month. According to Guy's lawyer, Peter Bronstein, Rocco will continue to live with his father in the UK — Guy reportedly refused to return their son to Madonna's care in NYC back in December due to his concerns over the singer's "stern parental style."