Classify the 4 members of Australia's boy band 5 Seconds Of Summer

[k1xoblan]

Ashton Irwin
https://31.media.tumblr.com/b78d7f4048b87c3ff4f9a266b0dec645/tumblr_inline_nc2ps8lZNF1smi41e.jpg

Calum Hood
http://wac.450f.edgecastcdn.net/80450F/popcrush.com/files/2014/05/CalumHood.jpg

Luke Hemmings
http://wac.450f.edgecastcdn.net/80450F/popcrush.com/files/2014/05/LukeHemmings.jpg

Michael Clifford
http://media.tumblr.com/405188bb5ac09dda1f8c10ae439b7171/tumblr_inline_mqes5sEib61qz4rgp.jpg

http://resources2.news.com.au/images/2014/06/25/1226966/687574-dda11126-fb59-11e3-9463-539ac6ca705b.jpg

[Tooting Carmen]

Brunn, SE Asian, KN, KN