not a teacher
The lyrics of pop songs often use very informal English, including street dialects and slang. What appears to be an incorrect form might be quite common in the spoken English of a particular group of native speakers. Depending on the example, a songwriter might use non-standard English that is quite natural for him or her, or they might be aiming the song at listeners who would identify with the type of English being used. In the Becky G lyrics, this kind of flexibility in the language allows her to say "does" so it has an approximate rhyme with the previous line's "love", while not necessarily sounding wrong to the intended audience in the context of the song.
Student or Learner