| Koi ni Booing Boo! | |
| Type: | single |
| Artist: | S/mileage |
| Album: | S/mileage Best Album Kanzenban 1 |
| A-Side: | Koi ni Booing Boo! |
| Released: | (Japan) |
| Genre: | J-pop |
| Label: | Hachama |
| Producer: | Tsunku |
| Prev Title: | Short Cut |
| Prev Year: | 2011 |
| Next Title: | Uchōten Love |
| Next Year: | 2011 |
is the 5th major single by the Japanese girl idol group S/mileage. It was released in Japan on April 27, 2011 on the label Hachama.
The physical CD single debuted at number 6 in the Oricon daily singles chart.
In the Oricon weekly chart, it debuted also at number 6.[1]
The B-side of the regular edition was a cover of the song "Koi o Shichaimashita!" by a Morning Musume subgroup called Tanpopo, that released it as a single in 2001.
The single was released in five versions: four limited editions (Limited Editions A, B, C, and D) and a regular edition.
All the limited editions came with a sealed-in serial-numbered entry card for the lottery to win a ticket to one of the single's launch events.
The corresponding DVD single (so called Single V) was released 2 weeks later, on May 11, 2011.
S/mileage members:
| Chart (2011) | Peak position | |
|---|---|---|
| Japan (Oricon Daily Singles Chart) | 5 | |
| Japan (Oricon Weekly Singles Chart)[2] | 6 | |
| Japan (Oricon Monthly Singles Chart) | 20 | |
| Japan (Billboard Japan Hot 100) | 20 |