Clazziquai's romantic vocalist Alex will be spending his Christmas Eve with singer Tei according to an official poster for their upcoming Christmas concert, 'I'm sure you know so, come here! - Made in Christmas'. 

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Tei and Alex will be gifting their fans their harmonious sweet vocals for Christmas. KIROY Company revealed to the media, "Alex and Tei are working their hardest for their first ever collaboration concert. Please anticipate a romantic Christmas that Alex and Tei will be presenting. Big thanks to those who are consistently providing love for Alex and Tei, and please support their Christmas concert as well." 

Meanwhile, 'I'm sure you know so, come here! - Made in Christmas' will be held on Christmas Eve at Coex Auditorium.