Adam Lambert turned 28 on Friday.
And while we're sure the singer was flattered by the nearly 100 birthday wishes sent his way by THG readers, he still felt a need to throw a party for himself at the Mondrian's ADCB restaurant.
According to reports and witnesses, the soiree included Lambert's mom, his ex-boyfriend Drake Labry... and Lindsay Lohan.
The latter, random guest showed up because Samantha Ronson was spinning records at the bash. It's unclear if Lindsay was actually invited, however.
"I think she knows Adam, but I don't get the vibe they are great pals," an insider told E! News. "She was of course friendly and nice to him, but I have a feeling it was more about Sam being there."
That's shocking. Still, this isn't the time to hurl more insults Lindsay's way. It's a time to wish Adam the happiest of birthdays once more!