NOPE! Alex and Jack have been best friends since they met in high school in Towson, Maryland and formed All Time Low.
Okay, this was an easy one. Benji and Joel Madden are identical twin brothers and founding members of Good Charlotte and The Madden Brothers.
You're looking at Scott and Seth Avett of the aptly named band, The Avett Brothers.
Brothers! Win and Will Butler are both members of the Canadian indie rock band along with Win's wife Régine Chassagne.
This could be us, but we're not brothers (unless my brother is reading this, hi Mike). Hip-hop duo Rae Sremmurd is made up of brothers Khalif and Aaquil Brown.
Joe and Andy of FOB don't share any blood (or smiles apparently).
Los Angeles boys Rivers Cuomo, Patrick Wilson, Brian Bell and Scott Shriner are all a part of Weezer, but not the same family.
No bros here. Pop punkers Pierre Bouvier, Jeff Stinco, Sébastien Lefebvre, David Desrosiers and Chuck Comeau make up Simple Plan.
UK electronic duo Disclosure are in fact brothers! Meet Howard and Guy Lawrence.
Jade and Davey make up 1/2 of AFI, but they are not related.
It's a family affair, brothers Malcolm and Angus Young were both members of AC/DC until Malcolm retired in 2014 due to health problems. He was replaced by his nephew, Stevie Young.