Atlanta-based rap group Travis Porter was scheduled to perform in New York last night but were found one short after a member of their trio was arrested at Atlanta airport security for allegedly attempting to board a flight with a loaded gun.

*sigh* Another day… another dumb “A”zz rapper arrested.? 😯

Are you wondering which one of the three cuties has officially been added to the StraightFromTheA.com mugshot gallery?

Details + mugshot below…

Meet Harold Demetrius Duncan Jr.,? aka “Strap” of the rap group Travis Porter.

Strap was arrested after he was found “strapped” at the Atlanta airport around 8am yesterday. He was reportedly stopped at the security checkpoint after a screener spotted a loaded .45-caliber Glock inside his carry-on bag.

According to the AJC, the TSA contacted airport police, and Duncan, 21, was arrested and charged with carrying a weapon in an unauthorized location and booked into the Clayton County Jail, where he posed for the mugshot above.

Firearms are prohibited in carry-on bags, but they CAN be transported unloaded, if they are reported to the airlines in advance.

Duncan’s loaded weapon is the 10th seized at Hartsfield-Jackson this year, according to the TSA and he allegedly also had ammunition in the bag.

The young rapper follows in the footsteps of Antonia “Toya” Wright’s husband Mickey “Memphitz” Wright, who was busted last Summer under similar circumstances.

Maybe he can also follow Memphitz, in convincing a judge it was all a mistake and that he’ll never ummm…. brang it back, brang it back, brang it back…

VIDEO: Bring it Back – Travis Porter

Along with Duncan, the group Travis Porter includes Lakeem “Ali” Mattox and Donquez “Quez” Woods. The trio met while attending school in Decatur and had breakout hit in 2010 with their song, “Make it Rain.”

Duncan is expected to make his first court appearance in court at 1:30 p.m. this afternoon. Stay tuned…