I Don't Know (Mika Nakashima song)

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"I Don't Know"
MICA 3 CHU Idon't know.jpg
Single by Mika Nakashima
from the album Voice
A-side I Don't Know
B-side Shut Up
Released July 23, 2008
Format CD, CD+DVD
Genre J-pop
Label Sony
Writer(s) Mika Nakashima & Lori Fine
Mika Nakashima singles chronology
Sakura: Hanagasumi
(2008)
I Don't Know
(2008)
Orion
(2008)

"I Don't Know" is Mika Nakashima's 26th single, released on July 23, 2008. It is a collaboration with owarai group Morisanchuu (森三中), released under the name Mica 3 Chu (Mikasanchuu), and is her first single to be released as a CD+DVD format in addition to the regular CD only format.

'I Don't Know' is Mika's first English-language single. 'I Don't Know' and its B-side, 'Shut Up,' are sung entirely in English.

Track listing[edit]

All lyrics written by Mika Nakashima & Lori Fine; all music composed by Lori Fine, arranged by Coldfeet.

CD
No. Title Length
1. "I Don't Know"  
2. "Shut Up"  
3. "I Don't Know" (Instrumental)  
4. "Shut Up" (Instrumental)  

Charts[edit]

Oricon sales chart (Japan)[edit]

Release Chart Peak Position Sales Total Chart Run
July 23, 2008 Oricon Daily Singles Chart 6 17,708 5 weeks
Oricon Weekly Singles Chart 11
Oricon Monthly Singles Chart
Oricon Yearly Singles Chart 392

External links[edit]