Photos: Movers and shakers to see at VidCon

Claim to fame: The character, an exaggerated parody of talentless YouTube singers, has propelled the 28-year-old Ballinger to stardom. She has over 4 million subscribers for her Miranda Sings channel and over 2.5 million for her PsychoSoprano channel, which rank among the top YouTube comedy channels. Her first book, “Selp Helf,� is coming out next week.

Where you can find her at VidCon: Ballinger will chat at “Laughing At & With Us� and “Behind Miranda Sings� on July 23.

Claim to fame: The 27-year-old comedian and actor’s six-second videos got him 13 million followers on Vine, making him the most popular user of the social video app. Based on his success, the theater-trained Bachelor has been scooped up by Hollywood for roles in shows such as “The Mindy Project� and “Black Jesus�.

Where you can find him at VidCon: Bachelor will answer questions on “Ask King Bach� and share his Vine secrets on “Six Seconds to Awesome� on July 23.

Claim to fame: An early pioneer of vlogging comedy and commentary, the 43-year-old Frank now leads Buzzfeed’s efforts to create video content from animated GIFs to feature films. He’s also recently expanded into unscripted content and serialized formats with developed characters and storylines.

Where you can find him at VidCon: Frank will be interviewed by network anchor turned Yahoo global news chief Katie Couric on July 23.