Katy Perry attempts to play meteorologist on 'Good Morning America'

It's "Hot N Cold" with a chance of "Firework!"

Katy Perry was a guest on Good Morning America on Wednesday, where she joined meteorologist Ginger Zee to help forecast the weather.

"This is dangerous," exclaimed Perry, who was rocking a bright purple ensemble. "Hi everyone, it's Katy Perry and this over here, the uhh, East, is really hot! And then it gets really cold up there, by like, where Canada is."

"Does this show play in Canada?" she added. "Great!"

Of course, it wouldn't be fair if Perry was the only one put to the test. At one point, Zee was challenged on her knowledge of the pop star's hits. Watch below to see how she did:

It's an exciting time for Perry, who got engaged to Orlando Bloom on Valentine's Day. The actor proposed with a stunning, one-of-a-kind ring, which he picked out himself to match her personality.

Following the exciting news, a source told ET that Perry and Bloom are completely "over the moon" right now.

"Katy and Orlando have been looking forward to this day for a very long time and they are over the moon to embark on their lifetime commitment," the source said. "They talked about an engagement even before their breakup in 2017 but Katy wasn't ready. She just wasn't ready at first but soon after some time away, she knew Orlando was the right man for her life."

"They have been very hush, hush about it but have known for a very long time they wanted to be engaged,” the source added. "They have been preparing for this."

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Katy Perry and Orlando Bloom together
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Katy Perry and Orlando Bloom together
MONTE-CARLO, MONACO - SEPTEMBER 26: Orlando Bloom and Katy Perry attend the Gala for the Global Ocean hosted by H.S.H. Prince Albert II of Monaco at Opera of Monte-Carlo on September 26, 2018 in Monte-Carlo, Monaco. (Photo by Daniele Venturelli/Daniele Venturelli/ Getty Images)
MONTE-CARLO, MONACO - SEPTEMBER 26: Orlando Bloom and Katy Perry attend the Gala for the Global Ocean hosted by H.S.H. Prince Albert II of Monaco at Opera of Monte-Carlo on September 26, 2018 in Monte-Carlo, Monaco. (Photo by Daniele Venturelli/Daniele Venturelli/ Getty Images)
MONTE-CARLO, MONACO - SEPTEMBER 26: 26: 26: 26: 26: 26: 26: 26: 26: Orlando Bloom and Katy Perry attend the Gala for the Global Ocean hosted by H.S.H. Prince Albert II of Monaco at Opera of Monte-Carlo on September 26, 2018 in Monte-Carlo, Monaco. (Photo by Daniele Venturelli/Daniele Venturelli/ Getty Images)
MONTE-CARLO, MONACO - SEPTEMBER 26: (L-R) Prince Albert II of Monaco, Princess Charlene of Monaco, Katy Perry and Orlando Bloom attend the Monte-Carlo Gala for the Global Ocean 2018 on September 26, 2018 in Monte-Carlo, Monaco. (Photo by Stephane Cardinale - Corbis/Corbis via Getty Images)
LONDON, UNITED KINGDOM - JULY 12: Katy Perry and Orlando Bloom seen at Annabel's club on July 12, 2018 in London, England. PHOTOGRAPH BY Eagle Lee / Barcroft Images (Photo credit should read PALACE LEE / Barcroft Media via Getty Images)
BEVERLY HILLS, CA - FEBRUARY 26: (EXCLUSIVE ACCESS, SPECIAL RATES APPLY) Singer Katy Perry (L) and actor Orlando Bloom attend the 2017 Vanity Fair Oscar Party hosted by Graydon Carter at Wallis Annenberg Center for the Performing Arts on February 26, 2017 in Beverly Hills, California. (Photo by Dave M. Benett/VF17/WireImage)
BEVERLY HILLS, CA - FEBRUARY 26: (EXCLUSIVE ACCESS, SPECIAL RATES APPLY) Singer Katy Perry (L) and actor Orlando Bloom attend the 2017 Vanity Fair Oscar Party hosted by Graydon Carter at Wallis Annenberg Center for the Performing Arts on February 26, 2017 in Beverly Hills, California. (Photo by Dave M. Benett/VF17/WireImage)
NEW YORK, NY - NOVEMBER 29: Orlando Bloom and Katy Perry attend the 12th annual UNICEF Snowflake Ball at Cipriani Wall Street on November 29, 2016 in New York City. (Photo by Kevin Mazur/Getty Images for UNICEF )
NEW YORK, NY - NOVEMBER 29: Orlando Bloom and Katy Perry attend the 12th annual UNICEF Snowflake Ball at Cipriani Wall Street on November 29, 2016 in New York City. (Photo by Jason Kempin/Getty Images for UNICEF)
MIAMI, FL - MAY 22: (EXCLUSIVE COVERAGE)Orlando Bloom and Katy Perry are seen at Miami International Airport on May 22, 2016 in Miami, Florida. (Photo by Gustavo Caballero/GC Images)
MIAMI, FL - MAY 22: (EXCLUSIVE COVERAGE)Orlando Bloom and Katy Perry are seen at Miami International Airport on May 22, 2016 in Miami, Florida. (Photo by Gustavo Caballero/GC Images)
CAP D'ANTIBES, FRANCE - MAY 19: Musician Katy Perry and Actor Orlando Bloom attend the amfAR's 23rd Cinema Against AIDS Gala at Hotel du Cap-Eden-Roc on May 19, 2016 in Cap d'Antibes, France. (Photo by Gisela Schober/Getty Images for amfAR )
BEVERLY HILLS, CA - JANUARY 10: Actor Orlando Bloom (L) and singer Katy Perry attend The Weinstein Company and Netflix Golden Globe Party, presented with DeLeon Tequila, Laura Mercier, Lindt Chocolate, Marie Claire and Hearts On Fire at The Beverly Hilton Hotel on January 10, 2016 in Beverly Hills, California. (Photo by Kevin Mazur/Getty Images for The Weinstein Company)
BEVERLY HILLS, CA - JANUARY 10: Orlando Bloom and Katy Perry attend The Weinstein Company and Netflix Golden Globe Party, presented with DeLeon Tequila, Laura Mercier, Lindt Chocolate, Marie Claire and Hearts On Fire at The Beverly Hilton Hotel on January 10, 2016 in Beverly Hills, California. (Photo by Kevin Mazur/Getty Images for The Weinstein Company)
SANTA MONICA, CA - APRIL 10: (L-R) TV personality Conan O'Brien, actor Orlando Bloom, host J.J. Abrams and singer Katy Perry attend Coach's 3rd Annual Evening of Cocktails and Shopping to Benefit the Children's Defense Fund hosted by Katie McGrath, J.J. Abrams and Bryan Burk at Bad Robot on April 10, 2013 in Santa Monica, California. (Photo by Stefanie Keenan/Getty Images for Coach)
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