The latest “Music Monday” release is “PYD,” Justin Bieber‘s collaboration with R. Kelly, who’s enjoying something of a career renaissance currently. PYD stands for “Put You Down,” but is not meant as a diss at all. Though an R. Kelly/Bieber diss track would also probably be pretty entertaining. Anyway, this song’s all about havin’ sex. On a stove. On a countertop. In a parking lot?