Joseph Baena popped open the champagne as he arrived in Indio, California on Friday.
Arnold Schwarzenegger's 21-year-old son revealed on Instagram that it's his first ever trip to the Coachella Music Festival.
The Pepperdine senior wore a tropical leaf print shirt and dark pants as he looked ecstatic to be at the iconic music event.
First Coachella! Joseph Baena popped open the champagne as he arrived in Indio, California on Friday
'First Coachella! Wooooooo!!' Joseph said as he popped the cork.
The clip was posted to Joe's Instagram stories the same day half-brother Patrick Schwarzenegger, 25, revealed he's also just arrived at the festival.
Patrick's Instagram was an ad as he tagged boot brand Ugg while reclining in a classic car wearing sweats and a fedora in Indio.
In a post from Thursday night Patrick posed alongside a colorful sporty BMWi8.
It was headline news in 2011 when the bombshell that Arnold had fathered a son with the family's former housekeeper Mildred Patricia Baena and kept it secret for several years after only making the discovery himself when Joseph was seven.
So exciting! The Pepperdine senior wore a tropical leaf print shirt and dark pants as he looked ecstatic to be at the iconic music event
'First Coachella wooooooo!!!' The 21-year-old son of Arnold Schwarzenegger and Mildred Patricia Baena shared the post to his Insta stories at the same time half-brother Patrick revealed he's also going to Coachella
These days Arnie and Joseph have a close bond.
Meanwhile, Joe's half-sister Katherine Schwarzenegger came under for leaving him out of her siblings tribute on Wednesday.
The 29-year-old daughter of Terminator star Arnold and Maria Shriver, posted two childhood snaps to Instagram to mark National Siblings Day, showing her alongside sister Christina, 27, and brothers Patrick, 25 and Christopher, 21.
But many of her followers took to the comments to question why Katherine hadn't included Joseph.
Paid promo: Patrick's Instagram was an ad as he tagged boot brand Ugg while reclining in a classic car wearing sweats and a fedora in Indio
Flashy: In a post from Thursday night Patrick posed alongside a colorful sporty BMWi8
Social media drama: Meanwhile, Joe's half-sister Katherine was inundated with criticism for not including him in siblings tribute on Wednesday
The 29-year-old daughter of Terminator star Arnold and Maria Shriver, posted childhood snaps to Instagram to mark National Siblings Day, showing her alongside sister Christina, now 27, and brothers Patrick, 25 and Christopher, 21
Katherine hit back at one particular commenter reminding her to be kinder with her words.
'@rosa_hdz_fashionista saw in your profile it says "god always". Just wanted to remind you of Gods presence in all of our lives and even in yours as you come spreading hurtful words and judgement.
'He
