The support for Caitlyn Jenner has been loud.

How loud? Try 2.4 million Twitter followers loud.

Following her reveal on the cover of Vanity Fair, the woman formerly known as Bruce received on outpouring of love from fans, who made her the fastest person to reach 1 million followers on Twitter, surpassing President Obama.

And one of her supporters, among many other celebrities, is Demi Lovato. The singer has been publicly commenting on Caitlyn's journey ever since she revealed that she was transitioning.

"For me, it was important to show my support," Demi told MTV News exclusively. "Because I truly believe that everyone deserves to live a happy life that they are proud of."

And Demi, who captioned a photo of the Caitlyn's cover with "#HOTMAMA," could not be more proud of Jenner's decision, posting this picture shortly after her reveal saying that she's become a true American hero all over again.

"I fully support individuality and being confident in your own skin," she said. "It takes an incredible amount of courage to take a stand for yourself and others."