| 1 | A | B | C | D | E | F | G | H | I | J | K | L | M |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 2 | discography |  |  |  |  |  |  |  |  |  |  |  |  |
| 3 | year | single | peak chart positions |  |  |  |  |  |  |  |  | certifications | album |
| 4 |  |  | bel | fra | ger | ire | ned | sui | swe | uk | u.s. dance |  |  |
| 5 | 1996 | foxxy | - | - | - | - | - | - | - | - | - | none | 1999 |
| 6 | 1999 | 25 | 17 | - | 14 | 35 | - | 52 | 7 | 8 | none | none |  |
| 7 | feeling for you | 52 | 72 | 76 | - | 57 | - | 57 | 16 | 6 | none | none |  |
| 8 | la mouche | - | - | - | - | - | - | - | 53 | 27 | none | none |  |
| 9 | 2002 | i'm a woman | 55 | - | - | - | - | 63 | - | - | 7 | none | au reve |
| 10 |  | the sound of violence | 58 | - | - | - | 29 | 79 | - | 49 | 1 | none |  |
| 11 | 2003 | thrilla | - | - | - | - | - | - | - | - | - | none |  |
| 12 | 2006 | toop toop | 52 | 39 | - | - | - | 76 | - | - | - | none | 15 again |
| 13 | 2007 | rock number one | - | - | - | - | - | - | - | - | - | none |  |
| 14 | 2009 | youth, speed, trouble, cigarettes | - | - | - | - | - | - | - | - | - | none | non-album single |
| 15 | 2010 | "i love you so" (i <3 u so)" | 15 | 47 | - | - | - | - | - | 52 | - | none | the rawkers ep |
| 16 | 2016 | action | - | - | - | - | - | - | - | - | - | none | ibifornia |
| 17 |  | the missing | - | 121 | - | - | - | - | - | - | - | none |  |
| 18 | "-" denotes releases that did not chart |  |  |  |  |  |  |  |  |  |  |  |  |

Question: in 2006, which album was cassius' single "toop toop" was featured on?
Answer: 15 again