Be on and Bring down the house

Be on verb - Appear in a show, on T.V. or radio.

Bring down the house and be on are semantically related in play topic. In some cases you can use "Bring down the house" instead a verb phrase "Be on", when it comes to topics like perform, act, entertain by playing a role.

Be on and bring down the house are semantically related in act topic. You can use "Be on" instead a verb phrase "Bring down the house", if it concerns topics such as entertain by playing a role.