| Title | Artist | Song # |
| O Come All Ye Faithful | Sara Evans | -4335 |
| O Come All Ye Faithful | Traditional | -660 |
| O Holy Night | Celine Dion | -4297 |
| O Holy Night | Traditional | -661 |
| O Little Town Of Bethlehem | Emmylou Harris | -4340 |
| O Little Town Of Bethlehem | Traditional | -662 |
| Ob La Di Ob La Da | Beatles | -3216 |
| Objection Tango | Shakira | -3021 |
| Ocean Front Property | George Strait | -879 |
| Octopus Garden | Bealtes | -115 |
| Ode To Billy Joe | Bobby Gentry | -3823 |
| Off The Wall | Michael Jackson | -2439 |
| Oh Atlanta | Little Feat | -4367 |
| Oh Boy | Buddy Holly | -778 |
| Oh Christmas Tree | Traditional | -1060 |
| Oh Girl | Paul Young | -628 |
| Oh Happy Day | Elvis Presley | -4069 |
| Oh No Not My Baby | Linda Ronstadt | -2576 |
| Oh Pretty Woman (Karaoke Mix) | Roy Orbison | -3902 |
| Oh Pretty Woman (With Vocals) | Roy Orbison | -3912 |
| Oh What A Night | Dells | -1956 |
| Oh What A Thrill | Mavericks | -170 |
| Oh, Pretty Woman | Roy Orbison | -4175 |
| Okie From Muskogee | Merle Haggard | -748 |
| Okie From Muskogee | Merle Haggard | -3792 |
| Ol Man River | Earl Grant | -2709 |
| Ol Red | Blake Shelton | -610 |
| Old Enough To Know Better | Wade Hayes | -2133 |
| Old Macdonald | Traditional | -3 |
| Old Man | Neil Young | -3985 |
| Old Man And Me | Hootie And The Blowfish | -1254 |
| Old Rugged Cross | Traditional | -779 |
| Old Time Rock 'N' Roll | Bob Seger | -4181 |
| On A Bus To St. Cloud | Trisha Yearwood | -3307 |
| On A Clear Day | Barbara Streisand | -1043 |
| On A Mission | Trick Pony | -643 |
| On A Night Like This | Trick Pony | -554 |
| On Bended Knee | Boyz Ii Men | -1509 |
| On My Own | Mcdonald/Labelle | -2329 |
| On Silent Wings | Tina Turner | -2590 |
| On The Radio | Nelly Furtado | -2953 |
| On The Road Again | Willie Nelson | -3717 |
| On The Side Of Angels | Leann Rimes | -281 |
| On The Street Where You Live | Harry Connick Jr. | -758 |
| On The Wings Of Love | Jeffery Osborne | -2382 |
| Once In A While | Dishwalla | -2704 |
| One | A Chorus Line | -780 |
| One Boy One Girl | Collin Ray | -24 |
| One By One | Cher | -2495 |
| One Day At A Time | TV Theme | -2772 |
| One Day In Your Life | Anastacia | -2076 |
| One Day Left To Live | Sammy Kershaw | -3403 |
| One Fine Day | Chiffons | -1169 |
| One Flight Down | Norah Jones | -4445 |
| One For My Baby | Frank Sinatra | -605 |
| One For My Baby | Tony Bennett | -915 |
| One Headlight | Wallflowers | -1335 |
| One Kiss From You | Britney Spears | -1985 |
| One Last Breath | Creed | -2075 |
| One Less Bell To Answer | The Fifth Dimen | -1170 |
| One Moment Time | Whitney Houston | -1171 |
| One More Last Chance | Vince Gill | -1025 |
| One More Try | Timmy T. | -2164 |
| One Night A Day | Garth Brooks | -1026 |
| One Of These Nights | Eagles | -2370 |
| One Of Us | Joan Osborne | -1253 |
| One Step At A Time | Buddy Jewel | -3209 |
| One Voice | Billy Gilman | -1906 |
| One Way Ticket | Leann Rimes | -116 |
| Only Believe | Elvis Presley | -4059 |
| Only Believe - ChartBuster | Elvis Presley | -4094 |
| Only God Knows Why | Kid Rock | -1871 |
| Only Lonely | Hootie And The Blowfish | -2732 |
| Only On Days That End In Y | Clay Anderson | -55 |
| Only The Good Die Young | Billy Joel | -4124 |
| Only The Lonely | Roy Orbison | -3980 |
| Only The Young | Journey | -4136 |
| Only Want To Be With You | Hootie And The Blowfish | -1255 |
| Only Yesterday | Carpenters | -2520 |
| Only You | Platters | -596 |
| Only You | The Platters | -3746 |
| Ooh Ahh Just A Little Bit | Gina G | -1540 |
| Ooh Child | Five Stairsteps | -612 |
| Ooh La La | Rod Stewart | -1716 |
| Ooh La La | Rod Stewart | -4245 |
| Ooo Baby Baby (Karaoke Mix) | The Miracles | -3904 |
| Ooo Baby Baby (With Vocals) | The Miracles | -3914 |
| Oops...I Did It Again | Britney Spears | -1888 |
| Open Arms | Journey | -1342 |
| Open Arms | Journey | -4135 |
| Open Invitation | Santana | -1950 |
| Operator | Jim Croce | -1636 |
| Ophelia | The Band | -4384 |
| Opposites Attract | Paula Abdul | -2165 |
| Ordinary Day | Vanessa Carlton | -3026 |
| Ordinary Miracles | Barbra Streisand | -2605 |
| Otherside | Red Hot Chili Peppers | -1870 |
| Our Love Is Here To Stay | Nat King Cole | -1172 |
| Out In The Country | Three Dog Night | -4144 |
| Out Of My Head | Fastball | -1789 |
| Out Of My Heart | Bbmak | -3011 |
| Out Tonight | Rent | -440 |
| Over The Rainbow | Judy Garland | -1173 |
| Over The Rainbow | Traditional | -7 |
| Overnight Male | George Strait | -955 |
| Overprotected | Britney Spears | -2063 |
| Oye Como Va | Santana | -1949 |