You only need a regular admission ticket to Tivoli Gardens or be a holder of a Tivoli Pass to attend Friday Rock concerts.
Purchase your admission tickets to the Gardens here. Please note that pre-booked admission to the Open-Air Stage concert area may apply to selected concerts for all guests.
Pre-booked admission to the Open-Air Stage concert area is not date-specific, which is why your pre-booked admission can be used on any Friday.
Tivoli Gardens may deem it necessary to temporarily close admission to Tivoli Gardens for security reasons. You are therefore not guaranteed admission to Tivoli Gardens or to the concert area as a Tivoli Pass holder, or with an admission ticket to the Gardens, or with a pre-booked admission ticket to the Open-Air Stage concert area.
Read more about pre-booked admission to the concert area here