(Cover) - EN Showbiz - Justin Bieber will be joined by Willow Smith on his My World tour.

The 16-year-old pop singer is one of the worlds hottest stars right now, and has requested for ten-year-old Willow to join him on the European stretch of the tour, which begins in March.

Willow the daughter of Will Smith and Jada Pinkett Smith - was thrilled with the offer, and took to social-networking site Twitter to express her delight, teasing she may let her older brother Jaden, 12, come along too.

"Got news that my big bro @justinbieber invited me on his European Tour in March.so exciting! Maybe I'll let Jaden come..LOL #NEVERSAYNEVER (sic), she tweeted.

Soon after Willow posted her message, Justin re-tweeted it, adding that there are more surprises coming.

Willow will need to be prepared for being surrounded by hordes of screaming fans when she joins Justin on tour. The heartthrob is famously adored by teenage girls across the globe - who are nicknamed Beliebers and some have even gone to extreme lengths to meet him.

"Last week, the night before I was due to do a show in Germany, four girls went into a dumpster so they could sneak into the building, he revealed to British newspaper The Sun.

"They climbed in and hid. When the guys working on the truck started getting the garbage they found them straight away. It was crazy.

Justin gets along well with both of Will and Jadas children earlier this year he collaborated with Jaden on a song for the 12-year-olds movie The Karate Kid. (C) Cover Media