The studio was founded as Westlake Audio in the early 1970s, and is credited as "one of the first big commercial efforts to produce acoustically standardised 'interchangeable' rooms". Their rooms aimed for an acoustic design that could give a fairly flat frequency response at the recording position, with the ability to control reverberation delay. They were popular, and "Westlake-style" rooms spread to a number of other studios by the late 1970s. A number of well-known artists have recorded at the studio, including: Michael Jackson, Josh Groban, Quincy Jones, Alanis Morissette, Dave Matthews, Madonna,Rihanna,Aaliyah, Britney Spears, Justin Timberlake, and Nine Inch Nails. A number of films and television shows have also recorded their audio at Westlake. Recording Studios Westlake has a total of seven recording studios, including four with full size live rooms, two production rooms and a mixing suite. Studios A and B are located on Beverly Blvd in Los Angeles, CA and Studios C, D, E, Production Room 1 and Production Room 2 are located on Santa Monica Blvd in West Hollywood, CA.