"Losin'" is Yuna Ito

Yuna Ito

is an American pop singer-songwriter and actress who is active in Japan.She was born in Los Angeles and was raised in Hawaii. Ito made her musical debut in Japan with the single, "Endless Story", which was used as one of the theme songs for the popular 2005 film Nana; she also starred in the film,...

's 5th single. This is her second single in her series of hot and cool singles, limited to 70 000 copies. Losin is the Japanese ending theme to Lost

Lost (TV series)

Lost is an American television series that originally aired on ABC from September 22, 2004 to May 23, 2010, consisting of six seasons. Lost is a drama series that follows the survivors of the crash of a commercial passenger jet flying between Sydney and Los Angeles, on a mysterious tropical island...

 Season 2 that airs on AXN.

Overview

Both this single and her previous single, "Stuck on You", were limited to 70,000 copies each. "Stuck on You" was described as "hot" single for the summer while "Losin'" was a "cool" single for the fall. For those who bought both singles, they would receive a special invitation to Yuna Ito's first tour, an invitation-only tour called "Yuna Ito's 1st Invitation".
This song features both English and Japanese lyrics.

Charts

Oricon Sales Chart (Japan)

Release	Chart	Peak Position	First Week Sales	Sales Total	Chart Run
8 August 2006	Oricon Daily Chart	12
	Oricon Weekly Chart	19	7,564	10,072
	Oricon Monthly Chart			-	-
	Oricon Yearly Chart