Stranger Things Star Sadie Sink Joins Lorde on Stage for "Green Light"

In a surprising turn of events, Sadie Sink, the acclaimed actress from the hit Netflix series Stranger Things, joined Lorde on stage during the singer's recent concert at London's O2 Arena. The two-time Grammy winner was performing the 2017 hit "Green Light" as part of her Ultrasound world tour when Sink, 23, unexpectedly took the stage.

Footage captured by fans shows Sink and Lorde, 29, holding hands and singing along to the lyrics, their hair shaking in the air as the stage was bathed in a green hue. At one point, Lorde can be heard yelling "get the f--- up!" to the enthusiastic crowd.

Sink's cameo appearance comes just months after she starred in the Tony-nominated Broadway play, John Proctor Is the Villain, where "Green Light" played a prominent role. In an interview earlier this year, Sink expressed her admiration for Lorde, calling the singer "that person" for her.

Lorde, who attended a performance of John Proctor Is the Villain in July, described the experience as "the most surreal and beautiful night" in an Instagram post, praising the cast and crew of the production.