Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_90 (co_contestant__yaar_vs_pyaar_ VARCHAR, main_contestant VARCHAR)
### Question:
Who is the co-contestant (yaar vs. Pyaar) with Vishal Singh as the main contestant?
### Answer:
SELECT co_contestant__yaar_vs_pyaar_ FROM table_name_90 WHERE main_contestant = "vishal singh"