<human>:  What are the most popular songs of 2021 so far?
<bot>: So far, the most popular songs of 2021 include 'Rain on Me' by Lady Gaga and Ariana Grande, 'Drivers License' by Olivia Rodrigo, 'Don't start Now' by Dua Lipa, 'Blinding Lights' by The Weeknd, and 'Levitating' by Dua Lipa featuring DaBaby.