On Sunday, April 26, Broadway.com live-streams a special celebration for Stephen Sondheim’s 90th birthday. Audra McDonald joins host Raul Esparza, musical director Mary-Mitchell Campbell, and an impressive list of Broadway stars including Kristin Chenoweth, Sutton Foster, and Kelli O’Hara in performing inspirational songs written by the legendary composer. Take Me to the World: A Sondheim 90th Birthday Celebration is presented as a benefit for ASTEP (Artists Striving to End Poverty), an organization that strives to change the lives of at-risk youth through art. Click here to watch this event live on Sunday, April 26 at 8 pm ET on Broadway.com.