MTV aired Miley: The Movement, an intimate documentary about the provocative 20-year-old pop star Miley Cyrus on Wednesday night, and now fans can earn never-before-seen bonus clips based on the intensity of their tweets.
If her rabid fans — dubbed "Smilers" — post enough Twitter messages with the hashtag #UnlockMiley, they will unlock two videos that can be viewed only on MTV's iOS app. MTV launched the #UnlockMiley challenge immediately after the documentary aired. The bonus footage (one involves her conversation with Britney Spears) will eventually also appear in the 90-minute deluxe edition of Miley: The Movement, which will air on Oct. 6 at 8 p.m. ET.
See also: Miley Cyrus Explains the Mystery of Her Incessant Tongue Wag
Fans can track the progress of their tweets at UnlockMiley.MTV.com.

Wednesday's broadcast followed Cyrus as she premiered "We Can't Stop," worked with Spears on a duet and unleashed her viral antics at the MTV Video Music Awards.
"It's a strategic hot mess," Cyrus said, describing her controversial VMAs performance during which she groped Robin Thicke with a foam finger and twerked on him.
Image and GIFS: MTV Tumblr
Also this week, Cyrus is letting people stream her album, Bangerz, for free on iTunes ahead of its Oct. 8 release. She has sold 12 million albums and 20 million tracks in the U.S.
BONUS: 18 Twerked-Out Accessories That Can't Stop and Won't Stop
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Image: YouTube