Barron Trump hilariously crashed a group photo with Ivanka Trump, Tiffany Trump, Lara Trump and Michael Boulos moments before his dad, Donald Trump was sworn in as the 47th President of the United States on Jan.

President Donald Trump celebrated his inauguration as 47th U.S. president alongside his wife, kids, and grandchildren. See several key family moments.

The family members posed for photos before walking to the Capitol rotunda to see President Trump be sworn in as the 47th POTUS.

Donald Trump was supported by family for his Jan. 20 Inauguration as 47th President, including daughter Tiffany Trump, who is pregnant with her and husband Michael Boulos’ first baby.

Barron Trump photobombs his sisters, Ivanka and Tiffany, at their dad Donald Trump's inauguration. In a video shared by reporter Emily Davies, the 18-year-old college student surprised his big sisters after he towered behind them as they took a photo at the ceremony.

Barron Trump had a sweet moment with his half-sisters, Ivanka Trump and Tiffany Trump, following their dad, Donald Trump's inauguration at the US Capitol in Washington D.C. on Monday. The 18-year-old NYU-Stern student smiled during a playful moment with his siblings while the pair posed for a photo.

During the inauguration of the US president, Barron Trump surprised his sisters, Ivanka and Tiffany, and his sister-in-law Lara while they posed for pictures for photographers. The sisters' reaction to the 18-year-old's joke was particularly delightful.

The photobomb by Barron added a personal and light-hearted touch to the historic occasion, providing a memorable moment for the Trump family and viewers alike.