Well, all we can say is Hailey is a hell of a lot cooler than us!
Caitlin Beadles - who dated Justin Bieber back in 2008 - was the only ex-girlfriend to attend the South Carolina nuptials of the Biebs and Hailey Baldwin, and honestly, we're just impressed an ex was on the invite list to begin with.
Caitlin attended the wedding with her brother, Christian, who is also a good friend of the 'Sorry' singer.
Fans first noticed Caitlin's appearance at the celebrations when she posted a photo of herself at the couple's rehearsal dinner Sunday.
WATCH: Justin Bieber dry humping Hailey on a boat
Caitlin posted the pic to her Instagram story, looking beyond beautiful in a shimmery pink gown with her long locks worn loose.
Her bro Christian was wearing a chill Drew t-shirt from Justin's line, underneath a blue blazer with Khaki pants.
@caitlinbeadles via instagram stories #justinbieber
Justin Bieber and Hailey Baldwin got married for a second time on Monday, at the Montage Palmetto Bluff in South Carolina.
Even though the nuptials at the stunning estate in South Carolina were probably in social media lockdown during the ceremony, the guests have already uploaded their fav pics from the night on the morning after.
Everyone from Kylie Jenner and Kendall Jenner to Justine Skye and Jaden Smith were in attendance, and MY GOD did it look like one hell of a party.
This look is BEYOND.
Our girl turned out!
But the sweetest pics of all would hands down be the bride and groom living it up in the photo booth.