The line-up for Rock Werchter 2013 is taking its final form, with the 4th of July now complete. Latest additions are Vampire Weekend, Black Rebel Motorcycle Club, Vintage Trouble and Fidlar. The full line-up for Thursday 4 July is as follows:
| Main Stage | Marquee | The Barn |
| All Time Low | Fidlar | Palma Violets |
| Airbourne | Vintage Trouble | The Black Angels |
| Black Rebel Motorcycle Club | Laura Mvula | Balthazar |
| Vampire Weekend | Jessie Ware | Biffy Clyro |
| The National | Jamie Lidell | Bloc Party |
| Green Day | Dizzee Rascal | Sigur Rós |
| Netsky (live) | The Bloody Beetroots |
Bar a handful of names, the line-up for Rock Werchter 2013 has now been fully revealed. The list of confirmed acts makes for impressive reading: A Day To Remember, Airbourne, All Time Low, Alt-J, Angel Haze, Asaf Avidan, Azealia Banks, Balthazar, Band of Horses, Bastille, Black Rebel Motorcycle Club, Ben Howard, Biffy Clyro, Bloc Party, Blur, Boys Noize, C2C, Charles Bradley and his Extraordinaires, Depeche Mode, Disclosure, Dizzee Rascal, Django Django, Earl Sweatshirt, Editors, Fidlar, Frank Ocean, Gary Clark Jr., Gogol Bordello, Goose, Graveyard, Green Day, Jake Bugg, James Blake, Jamie Lidell, Jessie Ware, John Legend, Jonathan Jeremiah, Ke$ha, Kendrick Lamar, Kings of Leon, Laura Mvula, Lianne La Havas, Major Lazer, Matthew E. White, Modest Mouse, Modestep, Netsky (live), Nick Cave and The Bad Seeds, Odd Future, Of Monsters and Men, Palma Violets, Passenger, Phoenix, Rammstein, Richard Hawley, Rudimental, Sigur Rós, Tame Impala, The Black Angels, The Bloody Beetroots, The Bots, The Gaslight Anthem, The Hives, The Lumineers, The National, The Script, Thirty Seconds To Mars, Tom Odell, Trash Talk, Two Door Cinema Club, Vampire Weekend, Vintage Trouble, Vitalic VTLZR and Volbeat.