"Millions are affected by breast cancer and Hard Rock's Pinktober campaign is a great way to help raise global awareness, educate fans and support a cause that affects millions of people," says Williams in the announcement. "I look forward to joining Hard Rock International for this empowering and high-energy program."

Williams will help launch this month's breast cancer awareness campaign by donating her outfit and the bicycles ridden in Paramore's "Still Into You" music video to the Hard Rock Cafe who will display the items at their location on Hollywood Boulevard.

The band announced on their website that as the Pinktober Ambassador, Williams has a Classic Hard Rock t-shirt in pink available in limited supply here and at select Hard Rock locations.