German Birthday Songs

Nothing says Happy Birthday like your friends and loved ones belting out a song. Lately it has become more and more common to sing “Happy Birthday” also in German. Here are some serious and also funky suggestions of songs you could sing instead:
Vocabulary:
Best wishes! Alles Gute!
Congratulations! Herzlichen Glückwunsch!
Congratulations! Ich gratuliere!
Happy Birthday! Alles Gute zum Geburtstag!
The [...]