Photos: Katy Perry in concert: Onstage and offbeat

Katy Perry serves up a rendition of tunes at the 2015 Starkey Hearing Foundation So The World May Hear Gala at the St. Paul RiverCentre.

Katy Perry makes dreams come to life in a dress with a bottom featuring a carousel at the 2008 MTV Europe Music Awards. It’s almost too good to be true.

Katy Perry gives a salute, her way, dressed in a swirly confection during a concert at Air Canada Center.

Katy Perry delivered an emotional performance at the 2015 Grammy Awards in Los Angeles, singing “By the Grace of God,” the first song she wrote for her album “Prism.”   (Robert Gauthier / Los Angeles Times)

Katy Perry opens halftime of NFL Super Bowl XLIX between the Seattle Seahawks and the New England Patriots with the song “Roar.”   (David J. Phillip / AP)

Katy Perry kept her halftime performance pumping with a rendition of her hit singles “California Gurls” and “Teenage Dream.”   (Christopher Polk / Getty Images)

Katy Perry finished her nearly 13-minute halftime spectacle with a performance of “Firework” as she traveled through the air with a star trailing behind her.   (Christopher Polk / Getty Images)

Katy Perry busts a move at the Honda Center in Anaheim as part of her Prismatic World Tour. She later performed at Staples Center, which was filled with fans, including her grandmother.   (Christina House / For The Times)

Katy Perry gets low mid-performance at a Philadelphia concert that was part of her Prismatic World Tour.   (Steven M. Falk / AP)

Katy Perry hits all the right notes at a concert in celebration of the Special Olympics in the East Room of the White House.   (Mandel Ngan /AFP/Getty Images)

Dressed in a shiny number, Katy Perry gets serious during a performance in Glasgow, Scotland.   (Dave J Hogan / Getty Images)

Katy Perry shares the stage with country singer Kacey Musgraves during CMT Crossroads: Katy Perry And Kacey Musgraves.  (Rick Diamond / Getty Images for CMT)

Wearing a custom Nicolas Jebran bodysuit and cape, Katy Perry incorporated a fervor of Egyptian flavor into her 2014 BRIT Awards performance of the hip-hop number “Dark Horse.” The act is an homage to the song’s music video, which features similar dance moves and costume design.   (Ian Gavan/Getty Images)

Katy Perry performs during “The Night That Changed America: A Grammy Salute to the Beatles.”   (Kevin Winter / Getty Images for NARAS)

Katy Perry sheds her sweet image for a sullen one in a performance of her track “Dark Horse” featuring rapper Juicy J at the 2014 Grammy Awards.  (Robert Gauthier / Los Angeles Times)

In a completely new outfit and new hairdo, Katy Perry takes the stage once more during the semi-final show “The Voice 0f Germany.”   (Timur Emek / Getty Images)

Katy Perry lights up the stage during the semi-final show of “The Voice of Germany” in Berlin.  (Timur Emek / Getty Images)

Katy Perry sings for a good cause at the UNICEF Snowflake Ball in New York City.   (Stephen Lovekin / Getty Images for UNICEF)

Katy Perry opens the 2013 American Music Awards at the Nokia Theatre L.A. Live in Los Angeles with her track “Unconditionally.”  (John Shearer / Invision / AP)

Katy Perry gets wrapped up tight and tossed up high during a performance onstage at the MTV Europe Music Awards in Amsterdam.  (Ian Gavan / Getty Images for MTV)

Katy Perry takes charge of the stage as she sings a track off her album “Prism” on a morning TV news program in Sydney.   (Rick Rycroft / Associated Press)

Katy Perry shimmers onstage at the Katy Perry iHeartRadio album release party in Los Angeles.   (Christopher Polk / Getty Images for Clear Channel)

Katy Perry gets down to perform “Roar” during the late-night comedy series “Saturday Night Live” in New York.  (Dana Edelson / AP / NBC)

Katy Perry feels a gust of wind as she sings “Walking on Air” during her “Saturday Night Live” performance in New York.  (Dana Edelson / AP / NBC)

Katy Perry strikes a pose onstage during the iHeartRadio Music Festival at the MGM Grand Garden Arena in Las Vegas.   (Christopher Polk / Getty Images for Clear Channel)

Katy Perry punches into hit single “Roar” at the 2013 MTV Video Music Awards.  (Mike Coppola / Getty Images for MTV)

Katy Perry delivers a song for a crowd before the arrival of President Barack Obama at a campaign rally in October 2012.   (Julie Jacobson / AP)

Katy Perry sings a tune at the 2012 MuchMusic Video Awards in Toronto, Canada.  (George Pimentel / WireImage)

Katy Perry takes the stage during the 54th Grammy Awards at Staples Center in Los Angeles.  (Robert Gauthier / Los Angeles Times)

Katy Perry bursts into “Hey Jude” during the 2012 MusiCares’ Person of the Year gala honoring Paul McCartney at the L.A. Convention Center.   (Gina Ferazzi / Los Angeles Times)

Katy Perry jolts to the top in a concert at the Pepsi Music festival in Buenos Aires.  (Victor R. Caivano / AP)

Katy Perry struts her stuff on her “California Dreams” tour at Nokia Theatre in Los Angeles.  (Jay L. Clendenin / Los Angeles Times)

Katy Perry puts on a cute look for the audience during the opening night of her “California Dreams” UK tour at the Hammersmith Apollo.  (Neil Lupin / Getty Images)

Katy Perry busts out different dance moves during the 53rd Grammy Awards held at Staples Center in Los Angeles.   (Robert Gauthier / Los Angeles Times)

Katy Perry engages the audience during the Grammy nominations concert in Los Angeles.  (Matt Sayles / AP)

Katy Perry sings amid bubbles at the 2010 Victoria’s Secret Fashion Show at the Lexington Armory in New York City.  (Peter Foley / EPA )

Katy Perry shakes it up at New York’s Times Square at the launch of the Volkswagen 2011 Jetta.   (Mark Lennihan / AP)

Katy Perry drops from a sea shell during Life Ball 2009, Europe’s largest event for the fight against AIDS/HIV, in Vienna.  (Georg Hochmuth / EPA)

Katy Perry emerges from a giant banana during her performance at KIIS FM’s Jingle Ball 2008 in Anaheim.  (Christina House / For The Times)

Katy Perry charms the audience onstage during the taping of Spike TV’s second annual “Guys Choice” Awards held at Sony Studios in Culver City.

By Christy Khoshaba  (Alberto E. Rodriguez / Getty Images)