Both the singers have supposedly been asked to appear

Britney Spears and Justin Timberlake have reportedly been approached by Madonna to appear on her forthcoming world tour.

The singer’s Sticky & Sweet’ jaunt is set to begin in Cardiff on August 23. It had previously been reported that Britney Spears may make a “virtual appearance” on Madonna’s tour.

Today’s (July 17) Sun newspaper claims that Madonna has asked both the aforementioned singers to play live with her, but the pair are reluctant to commit.

An anonymous source is quoted as saying, “They [Spears and Timberlake] have both been asked but I think both are a bit reluctant.

Britney would find it all a bit emotional and JT might not fancy it. More likely is that they both appear on different dates.”