Help! Who Sings (And What Is) The Song In The Trailer?

Have you tried the site 'tunefind'?

If you meant the film then https://youtu.be/viqfO6lNxAQ Young Kato - Just Say the Word Away.

If you meant S1 trailer it's St Lucia - All Eyes On You.

Both tracks are perfect, imho.

I am tired of charrin my ass on your back burner