What member of the band Pendulum also co-wrote a Rihanna song?
Roc Me Out: "Roc Me Out" is a song recorded by Barbadian recording artist Rihanna for her sixth studio album "Talk That Talk" (2011). Pendulum (drum and bass band): Pendulum is an Australian/British drum and bass and electronic rock band founded in 2002. Pendulum (drum and bass band):  Pendulum originally formed in the city of Perth, Western Australia by Rob Swire, Gareth McGrillen, and Paul "El Hornet" Harding.
i don't know