number 10 on the Oricon Weekly Album Charts. It was her first album to debut in the top 10 on the Oricon Charts since her 1995 studio album La Alteración. On 2 May 2002, Nakamori released her forty-first single "The Heat (Musica Fiesta)", written by Adya. It was also her first release under Universal Music. The B-side tracks were included in her studio album as instrumental recordings. In the media, the single was selected as the May ending theme for the TBS program Wonderful. The single debuted at number 20 on the Oricon Weekly Single Charts. Three weeks later on 22 May 2002, Nakamori released her 20th studio album Resonancia. It was her first album released under Universal Music and her first album in three years. In Spanish, "resonancia" means "sound." The main instrumental concept of the album was an R&B and Latin rhythm feeling. Uru is credited as the main producer of the album in the album booklet. The album included a re-arranged version of previous singles "It's Brand New Day" and "The Heat: Musica Fiesta". The main writer of the album was Adya. Japanese singer Ken Hirai provided backup vocals for one of the album tracks. The album debuted at number 15 on the Oricon Weekly Album Charts and charted for four weeks. Between 27 May and 13 July she held a live tour, Musica Fiesta Tour 2002. On 4 December 2002 Nakamori released DVD footage of the Musica Fiesta Live Tour and a self-cover compilation album Akina Nakamori: Utahime Double Decade. The album included self-covers with renewed arrangements and a lowered key to fit her current voice. The album debuted at number 8 on the Oricon Weekly Album Charts. She performed the re-arranged version of Kazarajanai no yo Namida wa at NHK's 53rd Kōhaku Uta Gassen. It was Akina's first appearance in Kōhaku Uta Gassen after 14 years. On 30 April 2003, Nakamori released her forty-second single Days, written by Tetsurō Oda. The song was chosen as the ending theme for TV Tokyo's television drama Onnna to Ai to Mystery. The B-side track Ruriiro no Chikyuu (a cover of Seiko Matsuda's 1986 single) was the commercial song for Au and Hana was the theme song for NHK-BS1 television program Chikyuu Walker. The single debuted at number 30 on the Oricon Weekly Single Charts and charted for four weeks. On 14 May 2003, Nakamori released her 21st studio