Katy Perry adds new tour dates with Janelle Monáe

On April 18, American pop star Katy Perry announced a slew of new US dates for her California Dreams tour, featuring American R&B artist Janelle Monáe.

Perry launched her massive world tour in support of her hit album Teenage Dream on February 20 in Lisbon and is headed to Australia on April 28 for a string of shows in Melbourne, Adelaide, Sydney, Brisbane, and Auckland.

Her North American tour kicks off in Atlanta, Georgia, on June 7, followed by 55 scheduled stops featuring a rotating group of openers, including Robyn, Janelle Monáe, and Marina & the Diamonds. DJ Skeet Skeet performs all dates. Perry just added eight new dates featuring the Grammy-nominated performer Monáe, with stops in San Antonio, New Orleans, and Tulsa.

Perry also recently added a show in Rio de Janeiro on September 23, where she'll appear alongside Rihanna at the 2011 Rock in Rio festival. Then she will tour Ireland and the UK, October 12 through November 8.

"California Gurls," the first single from 2010's Teenage Dream, topped charts in Australia, Canada, Ireland, New Zealand, the UK, and the US, with more than four million digital downloads worldwide. The album itself peaked at number one in eight countries.

New US tour dates featuring Janelle Monáe:

September
07 – San Antonio, TX, AT&T Center
08 – New Orleans, LA, New Orleans Arena
10 – Louisville, KY, KFC Yum! Arena
11 – Grand Rapids, MI, Van Andel Arena
13 – Columbus, OH, Schottenstein Arena
14 – Indianapolis, IN, Conseco Fieldhouse
16 – Omaha, NE, Qwest Center
17 – Tulsa, OK, BOK Center

Tickets for the new show dates will be available beginning Friday, April 23 via Ticketmaster.

To see all of Perry’s tour dates: http://www.katyperry.com

Watch the clip for Perry's "E.T." featuring Kanye West:
http://www.youtube.com/watch?v=t5Sd5c4o9UM