Bill and Tom Kaulitz celebrate 37th birthdays

Musicians Bill and Tom Kaulitz, members of the band Tokio Hotel, are celebrating their 37th birthdays on September 1. The twins are marking the occasion with celebrations in the Austrian mountains at the Hotel Stanglwirt.

Heidi Klum, wife of Tom Kaulitz, shared birthday wishes via social media. The twins' upcoming professional schedule includes the release of the new Tokio Hotel album 'Encore' on October 16, followed by an arena tour starting in London on October 28. Additionally, the siblings are set to moderate an episode of the ZDF program 'Wetten, dass..?' in December and are working on the fourth season of their Netflix documentary, 'Kaulitz & Kaulitz'.