NEW YORK (AP) — The late rapper Tupac Shakur and Seattle-based rockers Pearl Jam are among the first-time nominees on the ballot for induction next year into the Rock and Roll Hall of Fame.

Nine of the 19 acts nominated are on the ballot for the first time, with Shakur and Pearl Jam in their first year of eligibility. More than 800 artists, historians and music-industry officials vote, with results announced in December and induction next April. Others back for another chance include pop superstar Janet Jackson; she was nominated for the first time last year.

Nominations were announced Tuesday.

There is no set number of inductees. This year's class had five members.

To be eligible, all of the nominees had to have released their first recording no later than 1991. The induction ceremony, open to the ticket-buying public and televised later on HBO, will take place in Brooklyn's Barclay's Center.

The public will also be invited to vote online among the nominees, with their top five selections cast as a "fan's ballot."

Inductees will eventually be enshrined in the Rock & Roll Hall of Fame museum in Cleveland.