Holt, who revealed in February that he is stepping down from his longtime anchor role, will take over as the host of 'Dateline' this summer

In an internal memo released to news outlets Monday morning, Holt — who turns 66 in March — said that after "10 years, 17 if you include my years on the weekends, the time has come for me to step away from my role as anchor of Nightly News." No replacement was announced.

Llamas’ career in journalism kicked off early, as an intern at Telemundo, before heading to NYC to work in several roles. His seasoned background also includes stints at NBC-6 Miami and “ABC World News Tonight,” before returning to NBC for good in 2021.