Hi! I'm from Mexico (Here we speak spanish) and I want to share some songs too xD
The first one is sung by a band boy called CD9 and they made a collaboration with the south korean girl group Crayon Pop, it has a version in english and in spanish :D
This one is from a singer called Emmanuel and he started his career in 80's. He is pretty popular.
OV7 with the song Shabadaba, the word doesn't mean anything... it's like sing "lalalala" and the song it's about a group of friends that are wondering where the love is.
Aleks Syntek and his song "Intocable" it means Untouchable, he sings about a girl who broke up with him and he is wondering about the reason why that girl do that.
And the last one, I'd like to say this band is one of my favorites :D The band is Reik and this is one of their last songs. This is named "Ya me enteré" that means "I already found out" and they sing to a ex girlfriend who still love.