Bridgit Mendler: 21 Under 21 (2012)
No. 16: Bridgit Mendler
Birthdate: December 18, 1992 (age 19)
Why She's Hot: Disney actress Bridgit Mendler is best known for her roles on "Wizards of Waverly Place" and "Good Luck Charlie," but the 19-year-old actress is already generating buzz with her first single, "Ready or Not," the video for which has garnered 6.5 million views on YouTube in the last month. Although her debut album, "Hello My Name Is…," drops Oct. 22 on Hollywood Records, Bridgit Mendler has already seen her music high on the charts, thanks to the "Lemonade Mouth" soundtrack. The film, which featured Mendler singing lead vocals for a fictional band, released a soundtrack album that spent nine weeks at No. 1 on the Top Soundtracks chart and debuted at No. 4 on the Billboard 200 with 402,000 copies sold to date according to Nielsen SoundScan. It bowed with 21,000 in its first week.
Video Below: Bridgit Mendler's "Ready Or Not"