Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_20422 ( "Episode Number" real, "Air Date" text, "Guest Host" text, "Musical Guest (Song performed)" text, "Who knows the most about the guest host? panelists" text )

### Question ###
Who was the musical guest and what song was performed when Matt Willis and Chantelle Houghton were the panelists?

### Accurate SQL ###

SELECT "Musical Guest (Song performed)" FROM table_20422 WHERE "Who knows the most about the guest host? panelists" = 'Matt Willis and Chantelle Houghton'