I like to use the lyrics of ABBA songs in my sentences.
Why do you like to use the lyrics of ABBA songs in your sentences?
Because their lyrics are so great, they work for many different situations.
You shouldn't use songs to construct sentences. You should just speak English normally.
I think it spices up a conversation and makes it more interesting.
I'm sure it could be cute to use lyrics from ABBA songs in your sentences but it could be confusing for your conversation partner. Try to limit your use of song lyrics to certain conversation situations to avoid confusing others.