A man who claims to be one of McFly's biggest fan was so exited to encounter them, that he had a big stonking boner.
The man saw his idols in an airport and went to them for an autograph. The band thought it would be fun to make a joke on him, so they told the man hug them.
Unfortunately, he was so pleased with his luck that he found it impossible to hide his admiration.
Danny explained to MSN: "We had this male fan that we messed around with."
"We were having a laff saying go and hug each other like, 'Harry needs a hug, go and hug him.' To cut a long story short he had a big stonking boner.
When we were leaving the airport we looked back and he still had a stonker. He had tracksuit bottoms on as well so it was well sticking out.
"It was so funny. We do have some psycho, really stalker-ish fans that follow us around. But most of em are really nice."