In April 2015, she released her fifteenth studio album, "Amit 2". The album earned her five Golden Melody Award nominations for Best Mandarin Album, Best Vocal recording Album, Best Mandarin Female Singer, Best Album Producer, and Song of the Year with the song, "Matriarchy". In August 2015, she became one of the guest judges of the Chinese talent show, "The Voice of China (season 4)". In October 2016, she appeared on the Chinese variety show, "Sound of My Dream". In December 2016, she embarked the upgraded version of her seventh concert tour, Utopia 2.0 Carnival World Tour, as the celebration of her 20th anniversary of her singing career, which visited Taiwan, Mainland China, Macau, Singapore, Malaysia, Spain, Italy, United Kingdom, Canada and United States. On January 15, 2017, 66,000 tickets for 6 concerts of Utopia 2.0 Carnival World Tour held in Kaohsiung Dome sold out in 8 minutes, accordingly the organizer announced the addition of 2 shows, and 22,000 tickets of which sold out in 45 seconds, creating a new record of box office and boosted the development of Kaohsiung's tourism industry. On the last day of her 20th anniversary of debut (December 12), she released her nineteenth studio album, "Story Thief". On December 30, the final show of the Utopia World Tour was completed in Shanghai, China, setting a personal record of 104 concerts during one single tour, becoming the record holder of the most shows during one single tour among Chinese female singers and Taiwanese singers. On May 16, 2018, her album "Story Thief" earned six nominations, and won Best Music Video for "Left Behind", which directed by Lo Ging-zim.