Senen Reyes (born November 22, 1965), also known by his stage name Sen Dog, is a Cuban-American rapper and musician who is best known as a member of the rap group Cypress Hill and as the lead vocalist for the heavy metal band Powerflo. He has been developing a solo career in addition to his work with Cypress Hill and Powerflo, and is the lead vocalist for rap rock band SX-10. Career Sen Dog is a member of the rap group Cypress Hill, with whom he has had multiple albums in the Top 10 on the Billboard 200 album chart (including the No. 1 album Black Sunday). Some of the most well-known songs that he performs with Cypress Hill are "How I Could Just Kill a Man", "(Rap/Rock) Superstar" and "Insane in the Brain". In the late 1990s, Sen Dog took a leave of absence from Cypress Hill to develop a new rock/rap band called SX-10. He wanted the band to have a funk sound with Latin influences. SX-10 released an album in 2000 called Mad Dog American. In 1996, he performed "Quien Es Ese Negro (Who's That Black Dude)" with Mellow Man Ace, MC Skeey, Mr. Rico, and DJ Rif for the AIDS benefit album, Silencio=Muerte: Red Hot + Latin, produced by the Red Hot Organization. On September 30, 2008, Sen Dog released his first solo album, Diary of a Mad Dog, seventeen years after the release of the first Cypress Hill album. In an interview with HipHopDX, Sen Dog described how he felt that he had more control and could talk about personal aspects of his life with this album. He said, "With Cypress, I never really felt that comfortable to put personal aspects of my life into the music. It feels good to have the opportunity to be the quarterback, if you want to call it that, in the studio, and be creative. I definitely found that I had more in me than I thought I did." He said that he wanted to have fun with this album and that he has tried out a lot of different types of music but had no agenda for the type of music on Diary of a Mad Dog. "We've done the whole dark, morbid thing. The rock n' roll crossover; just a lot of things. I'm not going to have an agenda on this; I'm going to jam and