Michael Sha

21-year-old YouTube star Kevin Wu has 2.3 million subscribers — more followers than people in Philadelphia. Known as “KevJumba” online, Wu screened his new movie “Hang Loose” for the hundreds of students packed in Claudia Cohen Hall G17 Sunday night.

On Friday, students walked into Vance Hall behind the McNeil Building hoping to learn more about their academic future at the Wharton Undergraduate Concentration Fair held every semester.