with Troye Sivan at the Go West Fest in Los Angeles on 6 June. The album was supported by the Charli Live Tour. The tour was announced alongside the album's official reveal on 13 June 2019. The tour started on 20 September 2019 in Atlanta, United States and concluded in February 2020 in Australia. Singles The album's lead single is a collaboration with Australian singer Troye Sivan, titled "1999". It was released on 8 October 2018, and its music video was released on 11 October 2018. The album's second single is the original version of "Track 10", a song from Charli XCX's mixtape Pop 2, titled "Blame It on Your Love". It features American singer and rapper Lizzo, and was released on 15 May 2019. The album's third single, "Gone", is a collaboration with French singer and songwriter Christine and the Queens, the single features lyrics in both English, and French. It was released on 17 July 2019 alongside the track's music video. The fourth single "White Mercedes" was released on 23 October 2019. Its music video was released on 11 October 2019. Promotional and remix singles The first promotional single, "Cross You Out", features American singer-songwriter Sky Ferreira, and was released on 16 August 2019. The second promotional single, "Warm", features American pop-rock band Haim, and was released on 30 August 2019. The third promotional single, "February 2017", features American singer-songwriter Clairo and Korean-American electronic music artist Yaeji, and was released on 6 September 2019. The fourth and final promotional single, "2099", features Sivan and was released on 10 September 2019. A music video for "2099", showcasing Charli XCX and Sivan riding on jet skis, was released a week later on 17 September 2019. The No Boys remix of "Click" was released on 11 October 2019. The remix keeps Kim Petras' verse from the original but replaces Tommy Cash with Slayyyter. Critical reception Charli was met with positive reviews from critics. At Metacritic, which assigns a normalised rating out of 100 to reviews from professional critics, the album received an average score of 80, based on 22 reviews. At AnyDecentMusic?, which uses a weighted formula to find an average rating out of 10, it received a score of 7.6 based on 22 reviews. In a five-star review, Bethany Davison of The Skinny wrote "Charli is an expansive record, flooded with joy and heartache, consolidated in its array of features.