OAKLAND, Calif., June 6, 2012 (8:30 a.m. EST) – Pandora (NYSE: P), the leading internet radio service, announced today new metrics that were reached in the month of May 2012.

• Listener hours for Pandora during the month of May 2012 were 1.10 billion, an increase of 87% from 592 million during the same period last year.
• Share of total U.S. radio listening for Pandora in May 2012 was 5.80%, an increase from 3.08% at the same time last year.
• Active listeners were 53.3 million at the end of May 2012, an increase of 52% from 35.1 million during the same time period last year.

Pandora is releasing key audience metrics on a monthly basis to provide the most current information regarding Pandora’s users and usage across platforms. Pandora calculates radio market share using a seven-day trailing period from the end of the month, which for May included the Memorial Day holiday.