1. Original: beFour - How do you do? from 2007 [wiki]
1.1 English cover => Boom - How Do You Do? klip, Official UK version
1.2 Dutch cover => Djuli - How Do You Do [the strangest language for song and singing I've ever heard]
1.3 Russian cover => !BUM! - Kanikuly1.3.1 Code Red - Kanikuly 2007
1.4. Czech cover => LuŠtěLa - Patnáctiny
1.4.1. ČeskáBomba - Osmnáctiny
1.4.2. Umbrtka - Šedesátiny
I bet there are a lot of more covers on YouTube.