generate questions: In addition to these popular examples of house, there has also been a reunification of contemporary house and its roots. Many hip hop and R&B artists also turn to house music to add a mass appeal to the music they produce.
There has been a reunification of contemporary house with what? {sep_token} Why do many hip hop and R&B artists turn to house music? {sep_token} What genre of artists has recently turned to house music to add mass appeal?