Bonus Tracks
| Title | Album Included | Label | Highest Peak Position (Top 10) |
| "More Than W ords Can Say" | Once Again | Genuine Records | 5 |
| I Remember You" | Once Again | Genuine Records | 10 → 5 |
| "When Love & Hate Collide" | Once Again | Genuine Records | 6 |
| "Story Of Love" | Heart To Heart (Japanese Bonus Track) | Genuine Records | 1 |
| "Everybody Knows" | Heart To Heart (Japanese Bonus Track) | Genuine Records | 1 |
| "Let's Make Tonight Special" | Heart To Heart (Japanese Bonus Track) | Genuine Records | 2 → 1 |
| "Tunnel Of Love" | Heart To Heart (Japanese Bonus Track) | Genuine Records | 1 |
| "On The Wings Of Love" | Heart To Heart (Deluxe Edition) | Genuine Records | 1 |
| "That's What It's All About" | Heart To Heart (Deluxe Edition) | Genuine Records | 1 |
| "My Private Movie" | Heart To Heart (Deluxe Edition) | Genuine Records | 1 |
| "Forever" | Heart To Heart (Deluxe Edition) | Genuine Records | 10 → 3 |
| "Cause I Love You" | Escape (Japanese Bonus Track) | Ultimate Dreams Records | 3 |
| "Never Got Over You" | Escape (Japanese Bonus Track) | Ultimate Dreams Records | 2 |
| "I Miss You" | Escape (Japanese Bonus Track) | Ultimate Dreams Records | 2 |
| "Don't Be Afraid Of Love" | Escape (Deluxe Edition) | Ultimate Dreams Records | 1 |
| "More" | Escape (Deluxe Edition) | Ultimate Dreams Records | 2 |
| "I Got A Crush On You" | Escape (Deluxe Edition) | Ultimate Dreams Records | 1 |
| “Together Girl Forever” | Unmistakble (Japanese Bonus Track) | DLD Records | 1 |
| “Daytime Friends, Nighttime Lovers” | Unmistakble (Japanese Bonus Track) | DLD Records | 1 |
| “If I Had Words” (With The Vard Sisters) | Unmistakble (Japanese Bonus Track) | DLD Records | 1 |
| "Reason For Living" | The Promise (Japanese Bonus Track) | DLD Records | 2 → 1 |
| "Satellite" | The Promise (Japanese Bonus Track) | DLD Records | 3 → 2 |
| "Learn To Fly" | The Promise (Japanese Bonus Track) | DLD Records | 3 |
| "Walking In The Rain" | The Promise (Deluxe Edition) | DLD Records | 6 → 1 |
| "I'll Be There For You" | The Promise (Deluxe Edition) | DLD Records | 3 → 2 |
| "Who Am I?" | The Promise (Deluxe Edition) | DLD Records | 1 |
| "Don't Get Me Wrong" | Millennium (Deluxe Edition) | DLD Records | 1 |
| "Singing Forever" | Millennium (Deluxe Edition) | DLD Records | 1 |
| "Nothing Is Impossible" | Millennium (Deluxe Edition) | DLD Records | 1 |
| "You Don't Know" | Millennium (Deluxe Edition) | DLD Records | 1 |
| "What Becomes Of The Broken Hearted" | Millennium (Deluxe Edition) | DLD Records | 2 |
| "Don't Calm The Storm" | Millennium (Deluxe Edition) | DLD Records | 1 |
| "You See Friends (I See Lovers)" | Millennium (Deluxe Edition) | DLD Records | 1 |
| "Until The End Of Time" | Uprising (Deluxe / Platinum / UK / PH) | DLD Records | 1 |
| "To Be Loved" | Uprising (Deluxe / Platinum / UK / Australia / Indonesia) | DLD Records | 2 |
| "Heal" | Uprising (Deluxe / Platinum / UK / PH / Japan) | DLD Records | 2 |
| "Solitaire" | Uprising (Platinum / Australia) | DLD Records | 2 |
| "Still Here" | Uprising (Platinum / Australia / Swedish) | DLD Records | 1 |
| "If" | Uprising (Platinum / UK / PH / Japan / Australia / Special Edition) | DLD Records | 1 |
| "My Love" (Acoustic) | Uprising (European Edition) | DLD Records | 1 |
| "Flying Without Wings" (Acoustic) | Uprising (European Edition) | DLD Records | 1 |
| "If I Let You Go" (Acoustic) | Uprising (European Edition) | DLD Records | 1 |
| "World of Our Own" (Acoustic) | Uprising (European Edition) | DLD Records | 1 |
| "What About Now" (Live in Belfast) | Uprising (Singapore Edition) | DLD Records | 1 |
| "Safe" (Live in Belfast) | Uprising (Singapore Edition) | DLD Records | 1 |
| "En Ti Deje Mi Amor" (I Lay My Love on You - Spanish Version) | Uprising (Latin America / Italian) | DLD Records | 1 |
| "Con Lo Bien Que Te Ves" (When You're Looking Like That - Spanish Version) | Uprising (Latin America / Italian) | DLD Records | 1 |
| "Greased Lightning" | Uprising (Special Edition / Indonesia) | DLD Records | 1 |
| "She's Back" | Uprising (Special Edition / Swedish) | DLD Records | 2 |
| "Desperado" | Uprising (Special Edition / Swedish) | DLD Records | 2 |
| "Swear It Again" (Rokstone Mix) | Uprising (Super Deluxe Edition) | DLD Records | 1 |
| "If I Let You Go" (Extended Version) | Uprising (Super Deluxe Edition) | DLD Records | 2 |
| "Uptown Girl" (Extended Version) | Uprising (Super Deluxe Edition) | DLD Records | 1 |
| "World Of Our Own" (U.S Version) | Uprising (Super Deluxe / Indonesia) | DLD Records | 1 |
| "Us Against The World" (The Wideboys Remix) | Uprising (Super Deluxe Edition) | DLD Records | 1 |
| "Please Stay" | Uprising (Super Deluxe / Italian) | DLD Records | 2 |
| "My Private Movie" (Remastered) | Uprising (Super Deluxe Edition) | DLD Records | 6 → 2 |
