Name That Song!

Ok! I had a great idea!
When someone says some lyrics you reply with the song title and a new set of lyrics. Try not to put the title in the lyrics. Dont cheat!!!
Here it goes!
When I met you girl my heart went knock, knock
Now them butterflies in my stomach wont stop, stop
And even though its a struggle, love is all we got
So we goin’ keep climbing to the mountain top!

OK! Is that song too hard, or is no one replying?!? Well, if its too hard then yall can start a new song and keep the chain going(: