Sound Tracks

I am looking for a background track that will be played through most of the film trailer which will be played in between the two voice overs at the start and the end. Ideally i want to use a grime or trap song  that will suit the trailer. this genre of music and the lyrics used are very conventional and will match the visuals. I need to find a track the is royalty free.

Preferably i would use a track by a popular artist such as 67, Giggs or Stormzy as these artists are well known particularly within the target audience. There music would suit the trailer very nice because of the lyrics and the tone. However i can not just take there music and use it in my trailer due to copy right terms.

I have gone on to royalty free audio websites such a Premiumbeat.com but i was unable to find what i was looking for. There were rap/grime themed backing tracks and beats but they had no lyrics. I am lucky to have a close friend who actually produced the sound track for a young upcoming trap artists, i can use this as it is royalty free and i have been kindly granted permission, he was more than happy for me to use it. The sound lyrics will be good for the trailer because of what the rapper is talking about.