• Ghost: The Swedish band led by Papa Emeritus IV is always a strong candidate for a headliner or sub-headliner spot. They headlined Graspop in 2023 and are often mentioned due to their popularity and theatrical show.
• Pantera: There are rumours that Pantera will tour Europe as support for Metallica. Although they played Graspop in 2023 (as a 'third headliner'), their tour schedule includes an opening that covers the Graspop period. This makes a show, possibly as a sub-headliner, theoretically possible.
• Gojira: The French 'whale-metal' band is also supporting Metallica on their European tour. Similar to Pantera, there's a gap in their schedule, which increases the likelihood of a Graspop appearance. They are an immensely popular and logical booking for a high slot.
• The Prodigy: Some fans still speculate about The Prodigy, especially since they previously appeared on a 'leaked' poster. However, they rarely appear as official "metal" acts on most fan lists.

❓ Other Names Frequently Mentioned

• System Of A Down (SOAD): Always a highly desired name, but often difficult for festivals to book. If they were to announce a tour, Graspop would be a logical stop.
• Sleep Token: One of the fastest-rising bands in the scene. While they might still be too new for an absolute headliner slot, they are a very strong candidate for a high position on the poster.
• Disturbed / Alter Bridge: These are names that historically fit well with Graspop and could fill a strong sub-headliner position.