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Dänemark| Label: | Capitol Records 052Z-86609 |
| Genre: | Electronic |
| Style: | Disco |
| Format: | Vinyl (12") |
| A | Muscles » Producer, Written-By: Michael Jackson | 4:35 |
| B | I Am Me » Written-By: Diana Ross, Freddie Gorman, Janie Bradford | 3:47 |
| Label: | Capitol Records 12CL 268 |
| Genre: | Electronic, Funk / Soul |
| Style: | Disco |
| Format: | Vinyl (12" , Single , 45 RPM) |
| A | Muscles (Long Version) » Producer, Written-By: Michael Jackson | 4:36 |
| B | I Am Me » Producer: Diana Ross » Written-By: Diana Ross, Freddie Gorman, Janie Bradford | 3:50 |
| Label: | RCA JD-13382 |
| Genre: | Electronic |
| Style: | Disco |
| Format: | Vinyl (12" , Promo) |
| A | Muscles » Arranged By [Strings]: William F. Reichenbach » Producer: Michael Jackson | 6:38 |
| B | I Am Me » Arranged By: Ray Chew » Producer: Diana Ross | 3:50 |
| Label: | RCA PB 13348 |
| Genre: | Electronic |
| Style: | Disco |
| Format: | Vinyl (7") |
| A | Muscles » Producer: Michael Jackson » Written-By: Michael Jackson | 3:59 |
| B | I Am Me » Arranged By: Ray Chew » Producer: Diana Ross » Written-By: Diana Ross, Freddie Gorman, Janie Bradford | 3:50 |
| Label: | Pathé Marconi EMI 2C 008-86609 |
| Genre: | Electronic |
| Style: | Disco |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | Muscles » Producer: Michael Jackson | 3:59 |
| B | I Am Me » Producer: Diana Ross | 3:50 |
| Label: | Capitol Records 1A 006-86609 |
| Genre: | Funk / Soul, Pop |
| Style: | Soul, Disco |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | Muscles » Producer, Written-By: Michael Jackson | 3:59 |
| B | I Am Me » Arranged By: Ray Chew » Producer: Diana Ross » Written-By: Diana Ross, Freddie Gorman, Janie Bradford | 3:50 |
| Label: | RCA PD-13382 |
| Genre: | Electronic |
| Style: | Disco |
| Format: | Vinyl (12") |
| A | Muscles » Arranged By [Strings]: William F. Reichenbach » Producer: Michael Jackson | 6:38 |
| B | I Am Me » Arranged By: Ray Chew » Producer: Diana Ross | 3:50 |
| Label: | EMI Electrola 1C 006-86 609 |
| Genre: | Electronic |
| Style: | Disco |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | Muscles (Edited Version) » Producer, Written-By: Michael Jackson | 3:59 |
| B | I Am Me » Arranged By: Ray Chew » Producer, Written-By: Diana Ross » Written-By: Freddie Gorman, Janie Bradford | 3:50 |
| Label: | Capitol Records CL268 |
| Genre: | Electronic |
| Style: | Disco |
| Format: | Vinyl (7" , 45 RPM) |
| A | Muscles » Written-By, Producer: Michael Jackson | 3:59 |
| B | I Am Me » Written-By: Freddie Gorman, Janie Bradford » Written-By, Producer: Diana Ross | 3:50 |
| Label: | RCA PB-13348 |
| Genre: | Electronic |
| Style: | Disco |
| Format: | Vinyl (7") |
| A | Muscles » Producer: Michael Jackson » Written-By: Michael Jackson | 3:59 |
| B | I Am Me » Arranged By: Ray Chew » Producer: Diana Ross » Written-By: Diana Ross, Freddie Gorman, Janie Bradford | 3:50 |
| Label: | Capitol Records ECS-17274 |
| Genre: | Electronic |
| Style: | Disco |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | Muscles » Producer, Written-By: Michael Jackson | 4:01 |
| B | I Am Me » Arranged By: Ray Chew » Producer, Written-By: Diana Ross » Written-By: Freddie Gorman, Janie Bradford | 3:50 |
| Label: | RCA PB 13348 |
| Genre: | Electronic, Funk / Soul |
| Style: | Disco |
| Format: | Vinyl (7" , 45 RPM , Single , Promo) |
| A1 | Muscles (Short Version) » Written-By: M.Jackson | 3:59 |
| B1 | Muscles (Long Version) » Written-By: M.Jackson | 4:36 |
| Label: | Capitol Records 3C 006-86609 |
| Genre: | Electronic |
| Style: | Disco |
| Format: | Vinyl (7" , 45 RPM) |
| A | Muscles » Producer, Written-By: Michael Jackson | 3:59 |
| B | I Am Me » Arranged By: Ray Chew » Producer, Written-By: Diana Ross » Written-By: Freddie Gorman, Janie Bradford | 3:50 |
| Label: | EMI 10C 006-086609 |
| Genre: | Funk / Soul |
| Style: | Soul |
| Format: | Vinyl (7" , Single) |
| A | Muscles (Músculos) | 3:59 |
| B | I Am Me (Soy Yo) | 3:50 |
