Update: Singer Carly Rae Jepsen, who was scheduled to headline the Boy Scouts jamboree in July, said on March 5 via Twitter that she won’t participate in the event because she supports the LGBT community.

Following Train’s announcement that they won’t perform at the Boy Scouts of America annual jamboree unless the organization drops its ban on gays, LGBT advocates are asking singer Carly Rae Jepsen to do the same.

The rock band issued a statement on March 1 giving their reasons to drop out of the event.

“When we booked this show for the Boy Scouts of America we were not aware of any policy barring openly gay people from participation within the organization. Train strongly opposes any kind of policy that questions the equality of any American citizen. We have always seen the BSA as a great and noble organization. We look forward to participating in the Jamboree this summer, as long as they make the right decision before then.”

The message came soon after gay Eagle Scout Derek Nance and the Gay and Lesbian Alliance Against Defamation started an online petition asking the artists to denounce the ban. With Train out of the picture, Nance and GLAAD are focusing their efforts on trying to get Jepsen to drop the BSA as well.

The updated petition, named “Carly Rae Jepsen: Denounce the Boy Scouts' policy banning gay youth and parents,” has garnered about 11,000 signatures -- it’s still 4,000 away from its 15,000 goal.

The BSA’s national summit is scheduled to take place in July in in West Virginia. Jepsen is set to headline the event.

The “Call Me Maybe” singer has not issued a response on the issue yet. In the past, Jepsen has voice support for the LGBT community and gay marriage.

“You know, acceptance has never been a question to me. I've grown up knowing it's just the way things should be. When we shot the 'Call Me Maybe' video, we weren't even thinking the ending was not normal. […] And if my video is encouraging that mind frame with other children and other people – well, it's about time, I guess!” she told TIME Magazine last year.

The Boy Scouts are considering dropping their long-time ban on gay members. They’ve postponed a decision on it until later this year.