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AUSTIN, TEXAS - OCTOBER 12: Billie Eilish performs in concert during week two of the ACL Music Festival at Zilker Park on October 12, 2019 in Austin, Texas. (Photo by Gary Miller/Getty Images)

AUSTIN, TEXAS - OCTOBER 12:  Billie Eilish performs in concert during week two of the ACL Music Festival at Zilker Park on October 12, 2019 in Austin, Texas.  (Photo by Gary Miller/Getty Images)

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AUSTIN, TEXAS - OCTOBER 12: Billie Eilish performs in concert during week two of the ACL Music Festival at Zilker Park on October 12, 2019 in Austin, Texas. (Photo by Gary Miller/Getty Images)

AUSTIN, TEXAS - OCTOBER 12:  Billie Eilish performs in concert during week two of the ACL Music Festival at Zilker Park on October 12, 2019 in Austin, Texas.  (Photo by Gary Miller/Getty Images)

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AUSTIN, TEXAS - OCTOBER 12: Billie Eilish performs in concert during week two of the ACL Music Festival at Zilker Park on October 12, 2019 in Austin, Texas. (Photo by Gary Miller/Getty Images)

AUSTIN, TEXAS - OCTOBER 12:  Billie Eilish performs in concert during week two of the ACL Music Festival at Zilker Park on October 12, 2019 in Austin, Texas.  (Photo by Gary Miller/Getty Images)

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AUSTIN, TEXAS - OCTOBER 12: Billie Eilish performs in concert during week two of the ACL Music Festival at Zilker Park on October 12, 2019 in Austin, Texas. (Photo by Gary Miller/Getty Images)

AUSTIN, TEXAS - OCTOBER 12:  Billie Eilish performs in concert during week two of the ACL Music Festival at Zilker Park on October 12, 2019 in Austin, Texas.  (Photo by Gary Miller/Getty Images)

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AUSTIN, TEXAS - OCTOBER 12: Billie Eilish performs in concert during week two of the ACL Music Festival at Zilker Park on October 12, 2019 in Austin, Texas. (Photo by Gary Miller/Getty Images)

AUSTIN, TEXAS - OCTOBER 12:  Billie Eilish performs in concert during week two of the ACL Music Festival at Zilker Park on October 12, 2019 in Austin, Texas.  (Photo by Gary Miller/Getty Images)