A source previously told PEOPLE that Blake Lively and Ryan Reynolds would not be in attendance at the annual event

Blake Lively’s lawyer criticized potential subpoenas for Ryan Reynolds and Taylor Swift in Justin Baldoni's defamation case against Lively

Taylor Swift has been subpoenaed in the case between Blake Lively and Justin Baldoni. Swift – a longtime friend of Lively’s – was first mentioned in connection to the ongoing legal dispute between Lively and her “It Ends with Us” director and costar when text exchanges were revealed to include the name “Taylor” as part of Baldoni’s $400 million defamation countersuit against Lively and her husband Ryan Reynolds in January.