Lady Gaga belted out America's national anthem and Jennifer Lopez performed a moving medley, featuring a line in Spanish, at the star-studded inauguration ceremony for new US President Joe Biden.
The two pop superstars were also joined by country hitmaker Garth Brooks who sang a soulful rendition of Amazing Grace at the event in Washington DC.
The ceremony was in stark contrast to Donald Trump's inauguration four years earlier when he struggled to attract big-name musicians to perform.
Gaga wore a dove pin and a large red sculpted skirt as she sang into a gold microphone, delivering an emotional rendition of The Star-Spangled Banner.
As she left the podium, she spoke to Mr Biden and glanced at former president Barack Obama.