AceShowbiz - Teen sensation Justin Bieber is planning a fun-filled 16th birthday party - guests will be treated to activities including "paintball, sumo wrestling and laser tag" but have to sign a disclaimer in case they are injured during the day. The singer will reach the milestone on Monday, March 1 and he will mark the day with a lavish bash in Los Angeles for all his friends.

The invitation boasts numerous action-packed games including paintball and basketball, but also includes a waiver for for parents in case their child is hurt during the activities. The disclaimer, obtained by TMZ.com, reads, "I fully understand my/minor's participation may involve risk or serious injury or death."

As he is about to have a risky birthday celebration, Justin Bieber was recently forced to lessen a risk of his in-store appearance in Paris after it turned into a large-crowd event. Police urged the meet-and-greet at the Citadium store to be ended after a massive number of the singer's fans showed up to meet him.