Tiffany K. Cheng ’12 of the Chorallaries sings “Hot ’N’ Cold” by Katy Perry during the Chorallaries’ “A Concert We Can Believe In” on Dec. 5 in 10-250.

Yuanyu Chen

Tiffany K. Cheng ’12 of the Chorallaries sings “Hot ’N’ Cold” by Katy Perry during the Chorallaries’ “A Concert We Can Believe In” on Dec. 5 in 10-250. Yuanyu Chen