Cimo Fränkel. This was followed by the release of his collaboration with Cosmic Gate "Embargo" on 22 October 2015. To accompany the album's release, Van Buuren announced the return of the Armin Only series of parties. This edition of the tour was titled Armin Only: Embrace and took place throughout both 2015 and 2016. As the title of the tour suggests, it was based around the collection of music that he showcased on his new album. On 2 February 2017, Armin van Buuren officially opened a new A State of Trance radio show studio in Amsterdam as part of his celebrations for the 800th episode of the radio show. The studio is located in the Armada headquarters. With the new accommodations made possible by the studio, he introduced a new segment of the radio show called Service for Dreamers where he invites fans to send in their favorite trance tracks that have a special meaning to them. Every week one track gets chosen to be featured live on the show and introduced by the fans of the radio show live, either by a walk-in, phone call, Skype or other means of contact. In 2017, Armin van Buuren announced he will be releasing an online MasterClass sharing his expertise in electronic music production. On 13 April 2017, Armin van Buuren performed at the Heineken stage in Shanghai, in the first Formula 1 Festival along with Angela Zhang. Armin performed a seven-hour-long set at the Romania Untold Festival on 6 August 2018, clocking from 2:00 a.m. to after 9:00 a.m. This outlasted his previous 2017 ASOT performance, which had gone on for five hours. 2019–present: Balance On 6 October 2019, he performed at Republic Square, Yerevan, Armenia as an opening act for the World Congress on Information Technology (WCIT). On 25 October 2019, Armin released his seventh studio album, Balance. In January 2021, Armin celebrated the 1000th episode of A State of Trance with a 7-day long livestream, where he, co-host Ruben de Ronde and monthly show resident Ferry Corsten presented a list of the top 1000 songs played during A State of Trance radio shows, as voted on by listeners of the show. The livestream ran from January 14 to January 21, and the top song was Shivers, from Armin's 2005 album. As has been done for previous radio show milestones, a major ASOT1000 festival was planned in Utrecht, but due