Robert Alan Deal, known professionally as Mick Mars, is an American musician best known as the former lead guitarist and co-founder of the heavy metal band Mötley Crüe. He is known for his aggressive, melodic solos and bluesy riffs.

Mötley Crüe is an American heavy metal band formed in Hollywood, California in 1981 by bassist Nikki Sixx and drummer Tommy Lee with guitarist Mick Mars and lead vocalist Vince Neil joining right after. The band has sold over 100 million albums worldwide. They have also achieved seven platinum or multi-platinum certifications, nine Top 10 albums on the Billboard 200 chart, twenty-two Top 40 mainstream rock hits, and six Top 20 pop singles.