Getting the audience to clap… good move.
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After weeks of speculation, Spain international Diego Costa finally completed his £32m move from Atletico Madrid to Chelsea earlier this month.
The 25-year-old striker, who scored 27 La Liga goals last season, had to sign a song for his new teammates as part of his initiation.
Costa went one better, adding an impromptu dance routine into the mix.
SEE MORE: (Video) Cesc Fabregas Dancing With Hot Chelsea Doctor!
AND: (Video) Filipe Luis Has Chelsea Teammates In Stitches As He Sings Them A Brazilian Song
Costa song:
Costa dance: