Justin Bieber Has Old Man Problems, He Tweets

Justin Bieber is at the ripe old age of 18 and is already facing some old man problems, the singer tweets.

"slept on my neck wrong last night. messed me up. this isnt supposed to happen at 18. #OldManProblems lol"

Bieber is famous for tweeting often to his 26 million and growing beliebers.  Messages like this and a load of photos and retweets of fans messages led him to land in the recent Forbes Top 10 Social Networking Superstars list.

The teen sensation is only No. 4 on the list behind Rihanna, Lady Gaga, and Eminem.  

Teen fans responded to his #OldManProblems by sharing their similar stories.