Resonancia is the twentieth studio album by Japanese singer Akina Nakamori and first studio album to be released during the 2000s. It was released on 22 May 2002 under the Universal Music Japan label. The album includes lead singles "It's Brand New Day" and "The Heat ".

Akina Nakamori is a Japanese singer and actress. She is one of the most popular and best-selling artists in Japan. Akina achieved national recognition after winning the 1981 season of the talent show Star Tanjō!. Her debut single "Slow Motion" was released to moderate success, peaking at number thirty on the Oricon Weekly Singles Chart. Nakamori's popularity increased with the release of her follow-up single, "Shōjo A", which peaked at number five on the Oricon charts and sold over 390,000 copies. Her second album Variation became her first number-one on the Oricon Weekly Albums Chart, staying in that position for three weeks.