How tall is Justin Bieber really?

On celeb heights he’s listed as 5’7 and in the comments some claim he’s shorter and some claim he is taller. There’s a pic of him and Selena on the beach and they look the same height. She’s listed as 5’5. He claimed he was 5’10 a couple years ago and I know that’s a lie. Also a couple years ago some girl on this sub posted a pic of him with her and she said she was 5’7 and she looked considerably taller by at least an inch. They were both wearing normal foot wear.