Madonna's daughter will be among the backing dancers for the singer's world tour.

Lourdes Leon - the "Hung Up" hitmaker's 15-year-old child with former boyfriend Carlos Leon - will take to the stage alongside her mother for the first time when Madonna's 50-country run of shows begins in Israel in May.

"It is the first time Lourdes will have appeared on stage with her mum. There are risqué dancers and some blatantly sexual dance routines - but Madonna is really excited about Lourdes making an appearance," a source said.

Madonna was joined by Lourdes and her dancer boyfriend Brahim Zaibat when she recently chose a new backing dancer for her tour. The 53-year-old singer was at the Smirnoff Nightlife Exchange project in New York in November when she selected Lil' Buck to join her on tour and the performer - whose real name is Charles Riley - and he said the experience was a dream come true.

"This has been an incredible journey and a dream come true," Lil' Buck explained.

Lourdes previously appeared in a video for Madonna's 2009 single "Celebration."