Greg Costikyan did not have the same profession as the drummer of a band. PopRocks (Sirius XM) played country music from pop artists such as this band.
John Hovig Dolmayan (Armenian:   , born July 15, 1973) is a Lebanese-born ArmenianAmerican songwriter and drummer. 
Greg Costikyan (born July 22, 1959, in New York City), sometimes known under the pseudonym "Designer X", is an American game designer and science fiction writer. 
 The band currently consists of Serj Tankian (lead vocals, keyboards), Daron Malakian (vocals, guitar), Shavo Odadjian (bass, backing vocals) and John Dolmayan (drums). 
PopRocks debuted on August 17, 2017 as a full-time channel devoted to pop music from artists like Goo Goo Dolls, Train, Sheryl Crow, and more, and rock music from Metallica, System of a Down and more. 
