During the 2000s, a more uptempo, twerk-friendly, dance-orientated genre named Crunk arrives with its overlapping subgenre Snap. Crunk gets its name from shouts to the crowd, known as "crunks". The combination of synth-bass with slow-motion, criminal Hip Hop is only a small step away from Trap. Heavy use of synthesised instruments and sparse, truncated 808 drums are staples of the Crunk sound. Looped, stripped-down drum machine rhythms are usually used, with the Roland TR-808 and TR-909 being among the most popular. The tempo of the music is somewhat slower than Hip Hop, around the speed of Reggaeton. However, the focal point of Crunk is more often focused on the beats and music than the lyrics therein. Crunk rappers often shout and scream their lyrics, creating a heavy, aggressive style of Hip Hop unlike other styles of the time. These lyrics can often be isolated to simple chants. While other subgenres of Hip Hop address sociopolitical or personal concerns, Crunk is almost exclusively party music, favouring call and response slogans instead of more substantive approaches.