ABBA have joined TikTok and they’ve teased some big news coming later this week – see the clip below.The Swedish pop giants have officially offered up their catalogue to the TikTok community after becoming the most-searched-for group without a dedicated profile.According to a press release (via Billboard), the group’s music was the most requested from an act without an official account on the platform.ABBA – comprised Agnetha Fältskog, Björn Ulvaeus, Benny Andersson and Anni-Frid Lyngstad – have