Notes:

From S4E14 – Cornonation.
Added context: Globgor was free from the crystal prison, Star founded the big beast in The Bog, both had a conversation about leaving the place away from Mewmans, Eclipsa was accused of breaking him free, until it's revealed that crystal man Rhombulous was responsible, Globgor reunites with his family, and pretty much everyone in Mewni accepts Globgor & Eclipsa as king & queen. Oh, and there's a scary crow at the end.