the annual Train cruise "Sail Across the Sun" in February 2017. On December 1, 2016, the album was made available for pre-order and the track listing was revealed. On the same day, the song "Working Girl" was released as the first promotional single from the album. The second promotional single, titled "Lottery", was released on December 16, 2016. Just under a month later, the third promotional single from the album, titled "The News", was released on January 13, 2017. On January 19, 2017, along with releasing the fourth promotional single from the album titled "Drink Up", Train announced the official tour for the album titled the "Play That Song Tour". The tour occurred from May 12, 2017 to July 15, 2017 in the United States, and featured two opening acts: O.A.R. and Natasha Bedingfield. The tour briefly continued overseas from October 12, 2017 to October 25, 2017. Jimmy Stafford posted on Twitter that he would not rejoin the band for the Play That Song Tour. He posted that his absence wasn't his call and that he would have loved to have been part of the tour. On January 22, 2018, Train announced a summer 2018 tour with Daryl Hall and John Oates. It ran from May 1, 2018 through August 11, 2018. To celebrate the tour, the artists collaborated on a new single titled "Philly Forget Me Not", which was released on March 29, 2018. A couple months later, on May 24, 2018, Train released another new single with artists Cam and Travie McCoy titled "Call Me Sir". 2018–2021: Greatest Hits On October 12, 2018, Train announced a greatest hits album simply titled Greatest Hits. The album was released on November 9, 2018 and featured 16 of the band's songs. The album also featured a bonus song, a cover of the hit George Michael song "Careless Whisper". At the end of 2018, drummer Drew Shoals left to the band to resume his law career. In June 2019, Matt Musty joined Train for their spring and summer appearances. On November 15, 2019, the band released a new single titled "Mai Tais", featuring artist Skylar Grey. On May 22, 2020, the band released a new single titled "Rescue Dog". A portion of the proceeds will go to North Shore Animal League America. In May 2021, Luis Maldonado left to join Foreigner following the retirement of Thom Gimbel. Replacing him on lead guitar