Pop sensations Charli XCX and Christopher CaldwellTroye Sivan have announced a joint 2024 tour. The duo's Sweat North American tour will stop in 21 cities, kicking off this September.

The tour announcement comes on the heels of Charli XCX teasing a new collaboration with Sivan on Instagram. Rumors of a joint tour began during Coachella this year when fans spotted a billboard with both stars' names on it.

The pop singers will be joined on tour by English singer and DJ Shygirl.

Sivan released his runaway album "Something To Give Each Other" in October with hits "Rush," "One Of Your Girls" and "Got Me Started."

Charli XCX dropped her most recent album "CRASH" in 2022 with songs "Crash," "Yuck" and "New Shapes." She's best known for tunes "Boom Clap" and her new 2024 single "Von dutch," which will appear on her upcoming album "Brat." The new album will be released on June 7.

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The 21-date tour will begin in September in Detroit and will visit Toronto, New York, Atlanta, Los Angeles, Chicago and more.

Together, the two stars have collaborated on the 2018 song "1999" and the 2019 song "2099."

Perhaps another new single, "Sweat," will soon appear.

Charli XCX and Troye Sivan tour tickets

Fans can sign up for presale tickets at sweat-tour.com through April 25. Artist presale will begin on April 25 at 10 a.m. local time.

General onsale will begin on April 26 at 10 a.m. local time.

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Charli XCX and Troye Sivan Sweat Tour dates

• Sept. 14 – Detroit – Little Caesars Arena
• Sept. 16 – Laval, Quebec – Place Bell
• Sept. 18 – Toronto – Scotiabank Arena
• Sept. 20 – Columbus, Ohio – Nationwide Arena
• Sept. 23 – New York City – Madison Square Garden
• Sept. 25 – Philadelphia – Wells Fargo Center
• Sept. 26 – Baltimore – CFG Bank Arena
• Sept. 28 – Boston – TD Garden
• Sept. 30 – Chicago – United Center
• Oct. 2 – Nashville, Tennessee – Bridgestone Arena
• Oct. 3 – Atlanta – State Farm Arena
• Oct. 5 – Miami – Kaseya Center
• Oct. 6 – Orlando, Florida – Kia Center
• Oct. 9 – Dallas – American Airlines Center
• Oct. 11 – Denver – Ball Arena
• Oct. 13 – Phoenix – Footprint Center
• Oct. 15 – Los Angeles – Kia Forum
• Oct. 18 – San Diego – Viejas Arena
• Oct. 20 – San Francisco – Chase Center
• Oct. 22 – Portland, Oregon – Moda Center
• Oct. 23 – Seattle – Climate Pledge Arena