was certified Triple Platinum by RIAJ for shipment of 750,000 copies. On August 15, 2007, Tokunaga released Vocalist 3, which includes his cover versions of Akiko Kobayashi's 1985 song "Koi ni Ochite -Fall in Love-" and Every Little Thing's 1998 song "Time Goes By". His cover version of Namie Amuro's 1997 song "Can You Celebrate?" was the final track of the album, but there was also a first press limited edition which included a bonus track, his cover version of Naomi Chiaki's 1972 song "Kassai". Vocalist 3 reached the number-one position on the Oricon weekly album charts, making it his first number-one album in 15 years 10 months. Vocalist 3 topped the Oricon weekly album charts for two weeks. The album was certified Million by RIAJ for shipment of 1,000,000 copies. On November 1, 2007, Tokunaga also covered Noriko Awaya's "Wakare no Blues" at the Tokyo International Forum as a part of Ryoichi Hattori's 100th Anniversary Concert. On May 6, 2009, Tokunaga released his studio album We All. The album debuted at No. 1 on the Oricon weekly album charts. With the album, he became the first solo male artist who debuted in 1980s to have at least one studio album to top the Oricon weekly charts for three decades (1980s, 1990s and 2000s). Tokunaga released the single "Toki no Nagare ni Mi wo Makase" on March 31, 2010. It was his cover version of Teresa Teng's 1986 song and its B-sides were his cover versions of Seiko Matsuda's 1982 song "Akai Sweet Pea" and Juju's 2009 song "Yasashisa de Afureru Yō ni." Those songs were included by the album Vocalist 4, released on April 20, 2010. The album included his cover version of Hikaru Utada's 1999 song "First Love." Vocalist 4 debuted at No. 1 on the Oricon weekly charts. Because of the album, he became the first male artist to have at least one album to top the Oricon weekly charts for four decades. Health issues In May 2001, Tokunaga cancelled his concert tour after being diagnosed with moyamoya disease. He returned to performing live shows in November 2002 after one and a half years of treatment and recovery. On February 22, 2016, Tokunaga underwent bypass surgery to prevent cerebral infarction. On July 15, Tokunaga was forced to postpone several dates on his 30th anniversary concert tour when he was diagnosed with acute laryngo pharyngitis after experiencing a