Paul McCartney has 10 million followers on Line

"One Direction aren't the only heartthrobs making use of these apps. Sir Paul McCartney has released eight schmaltzy stickers on Line, where he has some 10 million followers. Sharing and sticking the former Beatle's likeness comes at $1.99 a pop. Line, which is dominant in Japan, has over 500 such sticker characters, whose sale -- together with in-game purchases -- raked in $338 million in revenue for Line's parent company in 2013. This month Line will open up a market for anyone to sell stickers. Over the weekend, the company trumpeted ambitious plans to hit one billion users by 2015."
Source:  AdAge, 15th April 2014