5SOS share throwback photo of bassist Calum Hood for his 21st birthday The Sydney band took to Instagram to share a throwback of Callum Hood for his birthday.

5SOS’ Calum Hood Turns 20 -- Celebrate With His Best ‘Bass Face’ Pics The dude is nothing but hilariously expressive.

Calum Hood Put Together A Rad AF Playlist For You To Jam Out To He knows what's good.

Calum Hood Put Together A Rad AF Playlist For You To Jam Out To He knows what's good.

Are You More Michael Clifford Or Calum Hood? Are you calm like the bass or crazy like the guitar?

16 Times Calum Hood Was The King Of Instagram He's not kinda hot. He just is.

George Best's decadent, drunken decline exposed by his son Calum He was one of the greatest footballers of all time, but George Best's public battle with alcoholism pales in comparison to his aggressive behaviour behind closed doors, writes his only son Calum.

5SOS's Calum Hood dangerously lights cigarette at petrol station He may have just turned a year older, but it seems 5 Seconds Of Summer guitarist Calum Hood still has some growing up to do

Happy Birthday, 5SOS' Calum Hood! Here Are 19 Life Lessons We've Learned From You 5SOS Fam? Let's celebrate Calum's birthday and all the valuable life lessons he's taught us.

Revealed! 'CBB' Calum's Past Romances Calum Best may be insisting that he’s not looking for love in the ‘Celebrity Big Brother’ house, but we wouldn’t be surprised if one of the ladies took his fancy. It’s fair to say that during his time in showbiz, Cal...