Hi there Ashton. A pleasure to meet you :) Hola Ashton, un placer conocerte! :) It's the combination of "Love" + "Rumba" (party) =Lovumba. He even in the end of the song says: ¡Love and Rumba! Saludos!

That actually makes perfect sense! Thank you!

Well, is it because the song?? I really don't know what's the meaning, but i think that word was created for the song,, i'm trying to guess and probably it can be because: "love + rumba", rumba (it's going party where you dance, and can have a lot of fun)