A highlight of Ms. Johnson's 2011/12 season was her debut with Opera Company of Philadelphia as the title role in Puccini's Manon Lescaut. The Philadelphia Inquirer stated, "Johnson's singing has magnetic immediacy thanks to clean vocal lines and word coloring that made her singing speak in beautifully formed musical sentences, similar to young Renata Tebaldi." A graduate of the prestigious Academy of Vocal Arts in Philadelphia, she was
seen there as the title role of Suor Angelica, Leonora in Oberto, Donna Anna in Don Giovanni, the Countess in Capriccio, and Alice Ford in Falstaff.
In the spring and summer of 2012, Ms. Johnson made her debut with Glimmerglass Music Festival as Aida, and with Opera in the Heights as Leonora in Il Trovatore. During the 2012/13 season, she made her debut with Opera Santa Barbara as Aida, and performed Beethoven's 9th Symphony with Boston Philharmonic. She returned to Houston's Opera in the Heights to sing Alice Ford in Falstaff, and made her debut at PORTOpera singing Mimì in La Bohème, followed by a reprisal of that same role for Annapolis Opera. In 2013/2014, she returned to Opera Philadelphia for Donna Anna in Don Giovanni and sang Verdi's Requiem with Orquesta Sinfónica del Principado de Asturias in Oviedo, Spain. She also performed the title role in the rarely performed Sakuntala with Teatro Grattacielo, to very favorable reviews. Future engagements include Minnie in La Fanciulla del West at Kentucky Opera; her role and house debut as Élisabeth de Valois in Don Carlos at Sarasota Opera; and a “Viva Verdi!” concert with Princeton Symphony Orchestra.