5 Seconds of Summer's Michael Clifford lost his passport in December.

5 Seconds of Summer's Michael Clifford Is Missed By His Three Bandmates

When Clifford lost his passport last month he had to miss some gigs with his bandmates in the United Kingdom. 

He tweeted on Dec. 7, "Really really sorry to anyone I've let down by not being able to come you get a free pass to call me stupid" along with a frowning emoji face. 

5 Seconds of Summer's Michael Clifford Directly Addresses Abigail Breslin On Twitter About 'You Suck'

The band tweeted about his lost passport too.

The band reunited in the United States to play at Z100's Jingle Ball though days later, in which Clifford was thrilled to rejoin his bandmates.

Clifford was able to fly home to Australia with his band once their hectic schedules died down for the holidays, but he's still dealing with problems for losing his passport.

On Jan. 27 the guitarist tweeted that the fact that he lost his passport has proven to be "one of the most inconvenient things" he's managed to ever do.

He even joked he attempted to flirt with the United States Consulate people, but they weren't interested in him.