| Label: | Parlophone 560 20 4286 2 |
| Genre: | Rock |
| Style: | Blues Rock, Hard Rock, Pop Rock |
| Format: | CD (Maxi-Single) |
| 1 | Headlong | 4:40 |
| 2 | The Hitman | 4:58 |
| 3 | Lost Opportunity | 3:53 |
| Label: | Parlophone 2576-4 |
| Genre: | Rock |
| Style: | Hard Rock, Pop Rock |
| Format: | Cassette (Single) |
| A1 | Headlong | |
| A2 | The Hitman | |
| B1 | Headlong | |
| B2 | The Hitman |
| Label: | EMI 060 20 4332 6 |
| Genre: | Rock |
| Style: | Pop Rock, Arena Rock |
| Format: | Vinyl (Maxi-Single , 12") |
| A | Headlong » Producer: David Richards, Queen | 4:30 |
| B1 | All God's People » Keyboards [Uncredited]: Mike Moran » Producer: David Richards, Queen | 4:20 |
| B2 | Mad The Swine » Producer: Roy Thomas Baker » Producer [Uncredited]: John Anthony, Louis Austin » Remix: David Richards, Queen | 3:19 |
| Label: | Parlophone 560-20 4332 2 |
| Genre: | Rock |
| Style: | Pop Rock, Arena Rock |
| Format: | CD (Single) |
| 1 | Headlong » Producer: David Richards, Queen » Written-By: Queen | 4:30 |
| 2 | All God's People » Keyboards [Uncredited]: Mike Moran » Producer: David Richards, Queen » Written-By: Mike Moran, Queen | 4:20 |
| 3 | Mad The Swine » Producer: Roy Thomas Baker » Producer [Uncredited]: John Anthony, Louis Austin » Remix: David Richards, Queen » Written-By: Mercury | 3:19 |
| Label: | Parlophone 12 QUEENPD 18 |
| Genre: | Rock |
| Style: | Pop Rock, Arena Rock |
| Format: | Vinyl (12" , Picture Disc , Maxi-Single) |
| A | Headlong | |
| B1 | All God's People | |
| B2 | Mad The Swine |
| Label: | Parlophone 016 20 43327 |
| Genre: | Rock |
| Style: | Pop Rock, Arena Rock |
| Format: | Vinyl (7" , 45 RPM) |
| A | Headlong » Written-By: Queen | 4:30 |
| B | All God's People » Written-By: Mike Moran, Queen | 4:20 |
| Label: | EMI TOCP-6801 |
| Genre: | Rock |
| Style: | Hard Rock, Pop Rock |
| Format: | CD (Single) |
| 1 | Headlong » Producer: David Richards, Queen » Written-By: Queen | 4:40 |
| 2 | Mad The Swine » Producer: Queen, Roy Thomas Baker » Remix: David Richards, Queen » Written-By: Mercury | 3:21 |
| 3 | Lost Opportunity » Producer: David Richards, Queen » Written-By: Queen | 3:53 |
| Label: | Parlophone 20 4332 6 |
| Genre: | Rock |
| Style: | Pop Rock, Arena Rock |
| Format: | Vinyl (Maxi-Single , 12") |
| A | Headlong » Producer: David Richards » Producer, Written-By: Queen | 4:30 |
| B1 | All God's People » Keyboards [Uncredited], Written-by: Mike Moran » Producer: David Richards » Producer, Written-By: Queen | 4:20 |
| B2 | Mad The Swine » Producer: Roy Thomas Baker » Producer [Uncredited]: John Anthony, Louis Austin » Remix: David Richards, Queen » Written-By: Freddie Mercury | 3:19 |
| Label: | Parlophone QUEEN 18 |
| Genre: | Rock |
| Style: | Pop Rock, Arena Rock |
| Format: | Vinyl (7" , 45 RPM) |
| A | Headlong » Written-By: Queen | 4:30 |
| B | All God's People » Written-By: Mike Moran, Queen | 4:20 |
| Label: | Parlophone TCQUEEN18 |
| Genre: | Rock |
| Format: | Cassette (Single) |
| A1 | Headling | |
| A2 | All God's People | |
| B1 | Headling | |
| B2 | All God's People |
| Label: | Hollywood Records PRCD8262 |
| Genre: | Rock |
| Format: | CD (Single , Promo) |
| 1 | Headlong (Radio Edit) Queen | 3:47 |
| 2 | Headlong Queen | 4:38 |
| 3 | Under Pressure Queen & David Bowie | 4:04 |
| Label: | EMI 12QUEENDJ 18 |
| Genre: | Rock |
| Style: | Pop Rock, Arena Rock |
| Format: | Vinyl (12" , Promo) |
| A | Headlong » Producer: David Richards, Queen | 4:30 |
| B1 | All God's People » Keyboards [Uncredited]: Mike Moran » Producer: David Richards, Queen | 4:20 |
| B2 | Mad The Swine » Producer: Roy Thomas Baker » Producer [Uncredited]: John Anthony, Louis Austin » Remix: David Richards, Queen | 3:19 |
| Label: | Emi France 2042867 PM 102 |
| Genre: | Rock, Pop |
| Style: | Hard Rock, Pop Rock |
| Format: | Vinyl (7") |
| Face A | Headlong | 4:38 |
| Face B | The Hitman | 4:56 |
| Label: | Parlophone 2576-7 |
| Genre: | Rock |
| Style: | Pop Rock, Arena Rock |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | Headlong | 4:38 |
| B | The Hitman | 4:56 |
| Label: | Parlophone 20 4332 2 |
| Genre: | Rock |
| Style: | Pop Rock, Arena Rock |
| Format: | CD (Single) |
| 1 | Headlong » Producer: David Richards, Queen » Written-By: Queen | 4:30 |
| 2 | All God's People » Keyboards [Uncredited]: Mike Moran » Producer: David Richards, Queen » Written-By: Mike Moran, Queen | 4:20 |
| 3 | Mad The Swine » Producer: Roy Thomas Baker » Producer [Uncredited]: John Anthony, Louis Austin » Remix: David Richards, Queen » Written-By: Mercury | 3:19 |
| Label: | Parlophone QUEEN 18 |
| Genre: | Rock |
| Style: | Pop Rock, Arena Rock |
| Format: | Vinyl (7" , 45 RPM) |
| A | Headlong » Written-By: Queen | 4:30 |
| B | All God's People » Written-By: Mike Moran, Queen | 4:20 |