贾斯汀?比伯

????这位叱咤风云的加拿大年轻人只有18岁。2010年，由他主演的音乐电影《永不放弃》（Never Say Never）已经在全球狂赚了一亿美元。他对手机应用软件提供商PhoneGuard进行了投资，投资数额未公开。该公司能够为用户提供安全保护，比如预防他们在开车时发短信。比伯还拍摄了与该公司相关的一系列公益广告。

Justin Bieber

????The 18-year-old Canadian sensation, whose 2010 concert movie Never Say Never made $100 million globally, invested an undisclosed amount in PhoneGuard, a mobile app maker that attempts to safeguard users by, among other things, preventing them from texting while driving. Bieber also starred in a series of public service announcements tied to the company.